Acknowledgments
Transcription
Acknowledgments
Researching Education: Perspectives and Techniques Gajendra K.Verma and Kanka Mallick UK Falmer Press, 1 Gunpowder Square, London, EC4A 3DE USA Falmer Press, Taylor & Francis Inc., 325 Chestnut Street, 8th Floor, Philadelphia, PA 19106 © G.K.Verma and K.Mallick, 1999 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the publisher. First published in 1999 This edition published in the Taylor & Francis e-Library, 2005. “To purchase your own copy of this or any of Taylor & Francis or Routledge’s collection of thousands of eBooks please go to www.eBookstore.tandf.co.uk.” A catalogue record for this book is available from the British Library ISBN 0-203-98036-0 Master e-book ISBN ISBN 0 7507 0530 2 cased ISBN 0 7507 0531 0 paper Library of Congress Cataloging-in-Publication Data are available on request Jacket design by Caroline Archer Every effort has been made to contact copyright holders for their permission to reprint material in this book. The publishers would be grateful to hear from any copyright holder who is not here acknowledged and will undertake to rectify any errors or omissions in future editions of this book. Researching Education Contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 List of Figures and Tables vii Preface viii Acknowledgments x Introduction to Research 1 Methods of Research 3 Theory, Construct and Model 6 Research in the Social Sciences and the Natural Sciences 8 Types of Research 10 References 13 Educational Research: Mapping the Domain 15 The Subject Matter 16 Perspectives 22 References 31 Educational Research: Nature and Process 32 Definitions 32 Operational Strategies in Educational Research 41 Classification of Educational Research 44 Audiences 49 Evaluation of Educational Research 52 References 53 Educational Research: A Short History 56 The Historical Development of Educational Research 56 Modern Educational Research 61 v Chapter 5 Chapter 6 Chapter 7 Chapter 8 Educational Research Today 64 References 73 Approaches to Researching Education 75 The Historical Method of Research 75 The Descriptive Method of Research 78 The Experimental Method of Research 95 References 108 Research Tools in Education 112 Documentary and Content Analysis 112 Case Study 115 Surveys 116 Questionnaires 118 Interviews 123 Observation Techniques 130 Other Devices 133 References 137 Educational Research Planning 138 Selection and Definition of the Problem 138 Literature Review 142 Preparation of the Research Plan 144 Ethics and the Research Process 147 References 152 Statistical Concepts and Educational Research 154 The Normal Distribution and the Normal Curve 154 Testing Populations and Large Samples 160 Sampling from a Population 163 Other Theoretical Distributions 168 Non-parametric Distribution and Tests 170 Correlation Regression 174 vi Chapter 9 References 179 Educational Research and the Teacher 180 Research and the Teacher 180 The Teacher as Researcher 184 The Teacher Researcher and the Research Community 187 The Value of School-based Research 189 References 192 Glossary of Educational Research Terms 194 Index 206 List of Figures and Tables Figure 6.1 Figure 8.1 Figure 8.2 Figure 8.3 Figure 8.4 Figure 8.5 Figure 8.6 Figure 8.7 Figure 8.8 Figure 8.9 Figure 8.10 Table 8.1 Table 8.2 Table 8.3 Table 8.4 Table 8.5 Table 8.6 Table 8.7 Table 8.8 Table 8.9 Table 8.10 Table 8.11 Table 8.12 Table 8.13 Table 8.14 Table 8.15 Table 8.16 Table 8.17 Extract from an interview schedule Probability and the 6-coin test Normal distribution and the 10-coin test Normal distribution and the standard deviation Grid for a sampling frame Choice of friends: Distribution profile Comparison of marks in pure mathematics and physics Correlating reading and reasoning test scores Plot of reading and reasoning test scores Age and arithmetic test performance Anxiety level scores and speeded test performance Probability and the 6-coin test Probability and frequency and the 6-coin test Probability and frequency and the 10-coin test IQ scores and mental age Standard scores and the Normal distribution Confidence levels and sampling Cell size and sample grid Test scores: Inter-marker variations t-test table values F-ratio table values χ2 distribution Choice of friends: Distribution Examination performance in 2 subjects Probability and frequency Inter-class comparison: IQ scores Inter-class comparison: IQ distributions ‘A’ level performance and degree results 126 155 157 158 163 171 172 175 176 177 178 155 156 156 159 160 164 165 165 166 169 170 171 172 173 174 174 175 Preface When Falmer Press approached me with the suggestion that I might revise the book that Ruth Beard and I wrote on Educational Research, my immediate impulse was to agree. It was, after all, nearly 20 years ago that it first appeared and the worlds of both education and research had moved on. I imagined that it would be very much a case of up-dating the original text by inserting new references and mapping the changes that had occurred over the intervening years without having to engage in much re-writing. However, when Kanka Mallick joined me in this enterprise, and we started to re-read the book with a critical eye, we soon came to the conclusion that we wanted to attempt something more radical than simply up-dating the original text. Not only had research and education changed over the years, I had changed, my co-author had changed, and so had the book’s potential readers. Indeed, looking at the first edition, we became less and less certain about who it had been intended for. The more we thought about it, the more convinced we became that some fundamental restructuring was the only answer. The result of all this may be found in the following pages. The influence of the first book upon the present one is unmistakable, and perhaps inevitable: what still holds true and is useful has been retained. The major differences arise, we think, because this time we had a clearer idea of the audience for which it was intended. Whereas the first research book was, subconsciously perhaps, intended for students who had already made up their minds to undertake research and were looking for a kind of guide which would conduct them on the journey on which they had already embarked; this one made no such assumption. Whilst we would hope—and do believe— that the first book will still be of help to them, this new book Researching Education is intended for people—you the readers—who may be standing, anxiously perhaps, outside a door marked ‘EDUCATIONAL RESEARCH’ and wondering whether to knock on it, push it open and see what is on the other side. What this book seeks to do is to encourage you to push that door open, enter that world beyond it and explore. Like any traveller in unknown territory, the process can be very arduous but the rewards for discovering something new can be great. For some, one voyage of exploration is enough. The explorer returns home and takes up his or her life, enriched by the experience. For others, perhaps you, it is the beginning of a lifetime of intellectual adventure as one quest leads, inevitably it seems, to the next. ix If this little book arouses your interest, encourages you to book your passage on that journey, it will have succeeded in its aim. Good luck! Bring back treasure with which to enrich the world of education. G.K.V. K.M. Acknowledgments We would like to take the opportunity to thank colleagues who have helped in writing this book. First, we must mention Douglas Darby who has helped greatly in organizing the materials, both old and new, and providing very valuable suggestions and comments; and Tony Neasham, for his perceptive and valuable comments and suggestions at all stages from inception to completion. One chapter in particular, Chapter 8: ‘Statistical Concepts and Educational Research’, seemed particularly difficult to get right. In its original form, it seemed mathematically daunting to the readers for whom it was intended. The attempt to reduce the mathematical content and to focus on the concepts which underlay it was a particular challenge. We would like to thank Peter Pumfrey and Nicholas Boreham who read successive drafts of Chapter 8 and were, as always, generous with their time and helpful with their comments. Preparing a manuscript for publication is an arduous business which never gets any easier, however many times it has been done before. Janet Grimshaw, who was responsible for this (as well as for many earlier ones), has again been invaluable in the care and attention to detail that she has brought to the task. Gajendra K.Verma Kanka Mallick Chapter 1 Introduction to Research The term ‘research’ is often defined in terms of ‘systematic inquiry’. Simply expressed, research involves finding out something which was previously not known, or shedding fresh light on an issue or problem. People often seem to regard research as something mystifying which is only conducted by professional researchers. In practice, we are all engaged in one form of research or another in our everyday lives without being necessarily conscious that we are doing it. Many attempts have been made to provide formal definitions of the activity of which the following are but a few. The Encyclopaedia of the Social Sciences (1934) defined research as being the: …manipulation of things, concepts or symbols for the purpose of generalising and to extend, correct or verify knowledge, whether that knowledge aids in the construction of a theory or in the practice of an art. The mechanic or physician is a research worker only when he attempts to generalise about all automobiles or all patients in a given class. (pp. 330–4) A rather broader meaning of research was proposed by Wise, Nordberg and Reitz (1967): …it is characteristically and inevitably a systematic inquiry for verified knowledge. In that simple description is implied the whole syntax of research. This description clearly suggests that the purpose of research is to gain new, or to verify existing knowledge. The Penguin English Dictionary (1965) defined research as ‘scholarly investigation and study aiming at adding to the sum of knowledge of a specific branch.’ According to the Collins Cobuild English Language Dictionary (1987), research means the ‘detailed study of a subject’. It further suggests: ‘when you do research you collect and analyse facts and information and try to gain new knowledge or new understanding.’ Kerlinger (1983) defined research as the ‘systematic, controlled, empirical and critical investigation of hypothetical propositions about the presumed relations among natural phenomena’. Similar views were expressed by Best (1970) who suggested that ‘Research is a more systematic activity directed toward discovery and the development of an organised body of knowledge.’ These characteristics obviously apply in the main to the 2 INTRODUCTION TO RESEARCH natural sciences, and not to the social sciences within which education falls. In social science research, it is difficult, though by no means impossible, to establish cause and effect relations (see, for example, Lawrence, 1973). The main differences in the nature of research between the natural sciences and the social sciences may lie in the conduct and methods of research rather than its rationale which is the acquisition of knowledge/ information. Earlier views on the purpose of research focus on its use of systematic enquiry. This raises the question whether systematic enquiry is the main process of research, both in the natural and in the social sciences. For example, social research refers to both the collection and analysis of information on the social world, in order to understand and explain it better. Educational research refers to both the collection and analysis of information on the world of education (see Chapters 2 and 3 for further discussion). Classroom research refers to the kind of research that not only professional researchers but practising teachers are able to conduct within the context of their professional lives. This type of research attempts to utilize the insights and procedures of social and educational research in schools. The concept of research does not have the same meaning in all academic disciplines because of the diverse natures of activity. Thus, there is no universally accepted meaning of research. In one instance, research may appear to be a simple activity while, in another, an extremely complex one. It may take place in the laboratory, library, classroom or in the community. It may be local, national or international. Research may be conducted by a single researcher, or by a group of researchers. Whatever the research framework, the one thing common to all research activities is that they are supposed to be a thorough and systematic search for trustworthy and meaningful knowledge. If the research is of an applied nature, its goal is to provide us with sound information for making decisions. There are, of course, theoretically oriented studies which may not have immediate practical application. Cronbach and Suppes (1969), for example, have drawn a distinction between ‘decisionoriented’ studies and ‘conclusion-oriented’ studies. According to them, the goal of ‘decision-oriented’ research is to provide information for decision-makers, and ‘conclusion-oriented’ research follows the interests of the researcher. Thus, in decisionoriented research theory would be less important than conclusion-oriented research in which the goal may range from development of basic theory to applied and nontheoretical research, depending upon the interests of the researcher. Whatever the orientation of their work, researchers should have the necessary skills and training to identify the precise research issues/problems, design a sound research framework, use appropriate techniques to collect information and present the findings clearly and concisely for relevant audiences to understand the message and, if appropriate, make decisions. The modern use of the term ‘research’ is broader than the traditional one, allowing it to be applied to the acquisition of any form of knowledge or information (Travers, 1978). Opinions about the nature and purpose of research in most disciplines have changed over the last 40 years because of technological progress. Research as a human RESEARCHING EDUCATION 3 endeavour is often characterized by its persistent and organized effort to extend our knowledge and understanding about the world in which we live. The scope of research and its impact on our everyday life has now become wider than before because of the fact that we live in a global village. Whether research is conducted in a controlled situation or in a natural setting, its impact can be felt in seconds because of the faster communication system. It is clear from the foregoing brief discussion that the quest for knowledge is an essential aspect of any form of research. Sometimes, information obtained from research may be inconclusive, unclear or apparently illogical, not helping us to reduce the areas of our ignorance. However, in the last 40 or 50 years, research has attained a great deal of respectability amongst educators, politicians, business people and others who often turn to researchers in the quest for reliable and valid information for making decisions. Today, every aspect of human life is affected by research technology. In fact, most advanced societies have evolved a research-oriented culture, or are in the process of moving in that direction. What, then, are the characteristics of research? Some of its essential characteristics may be summarized as follows: • Research is an organized and deliberate effort to collect new information or to utilize existing knowledge for a new purpose. • Research seeks to answer worthwhile and fundamental questions, by utilizing valid and reliable techniques. • Research is logical and objective, using the most appropriate test/s to justify the methods employed, data collected, and the conclusions drawn. • The final outcome of research contributes to the gaining of new knowledge and a better appreciation of the issues involved. Methods of Research Considerable changes have occurred over the last few decades in the ways that researchers have sought to pursue plausible and objective explanations of problems or to address issues of concern. Those ways are properly referred to as methodology, that is, the particular methods or techniques employed in the conduct of the research. The selection of the most appropriate methods and techniques, whether in sampling, data collection or analysis, is part of the art of the researcher who must find the best way of tackling the topic under study and providing answers that are reliable and valid (Silverman, 1993). The tools and procedures for gathering and analysing data have also been refined in the last 30 years or so, not least because of technological progress in the field of computing. It also seems to be the case that research in the physical and biological sciences has developed faster than research in the social sciences because of the fact that external factors are less amenable to controlled scrutiny in the social sciences than in the natural sciences. 4 INTRODUCTION TO RESEARCH Research methods do not seem to be isolated; they overlap. Investigators need to reflect on their own understanding and thinking when using any systematic research method for obtaining reliable knowledge or for getting at what some writers describe as the ‘truth’. In the early 1930s, Dewey gave an impetus of major importance to the socalled scientific method. He described the five main stages of thought or conceptualization when researchers attempt to acquire new knowledge: 1 Recognition and definition of the problem; 2 Observations, collection and classification of data considered relevant to the problem; 3 Formulation of a tentative hypothesis concerning these observations or the phenomena; 4 Verification of this hypothesis against all the obtained facts. This might involve the collection of additional/new data and the modification of the original hypothesis; 5 Formulation of conclusion/conclusions in terms of general principles concerning the problem or the phenomena. (Dewey, 1933) While the above stages are a useful general guide in the construction and implementation of research, the researchers do not always need to follow these steps in a rigid way. In a practical situation, their thinking frequently moves to and fro across these basic steps. The exact formulation of a research strategy varies according to the nature and purpose of the research. The method of acquiring knowledge needs to be more flexible than is often the case. It is also true that what has been broadly called in the literature the ‘scientific method’ has proved valuable in the study of the natural sciences, and has also helped social scientists to gain insight into many problems/issues. This method provides result which are quantifiable. The researcher is able to say, for example, that a particular technique of teaching reading applied to a group of children resulted in their having a reading age 7 months in advance of a similar group who were taught by another method. The apparent precision of the results obtained in quantitative studies makes the approach very attractive. However, the quantitative is not the only knowledge of reality, and all things do not exist in quantities that lend themselves readily to measurement (see Chapter 5). There are other research techniques to explore reality, such as those used by Piaget (1926; 1932) in his investigations of the beginnings of a child’s concepts. Further, there are many qualities, behaviours and events that cannot yet be measured—because no instrument, tool or technique has been devised which can, by general consent, accurately and repeatedly be applied to measure them. An example of this might be beauty: no way of measuring this exists though the writer recollects listening to a radio game in which the members of the panel were asked to devise a new and useful unit of measurement. Denis Norden proposed the ‘millihelen’ which he defined as ‘the quantity of beauty required to launch one ship’. The research methods in the social sciences in particular have become closely bound up with the values, attitudes and perceptions of the researcher. This is not the same as suggesting that research is subjective. Inevitably, no researcher can claim to be value- RESEARCHING EDUCATION 5 neutral, free from assumptions, unbiased and objective in viewing the world. Scientific knowledge exists within a particular framework of expectation; the work of Kuhn challenged the existing belief that science is a rational and objective enquiry (Kuhn, 1970, 1972). Another point to remember is that there are many questions, particularly in the social sciences, which cannot be answered by the controlled method of enquiry which is often described as the scientific method. The planning of a research programme may include a great deal of exploratory work which is often intuitive or speculative, and at times fragmented. Although the investigator has to define the problem/issue in a precise manner at some stage, concepts and ideas might initially be vague and illdefined. It may be necessary to observe and study the situations and even collect some preliminary data in order to establish the relevance of vaguely conceived ideas. In this process, reading around the field of study, intuition, speculation, hunch or intelligent guess becomes necessary for the formulation of a clearly defined problem. It should also be emphasized that problem recognition is one of the most difficult as well as the crucial part of the research process. Thus, research should not be regarded as a rigid activity. A clearly defined problem may generate one or several hypotheses or research questions. The hypothesis/research question must be stated clearly in order to test its logical or empirical consequences. The use of hypothesis or research question may prevent an investigation from becoming too broad in scope or disorderly in the construction of the research design. Writing about the need for carefully formulated hypotheses, Van Dalen (1966) stated that ‘No scientific undertaking can proceed effectively without well-conceived hypotheses…. Without hypotheses, research is unfocused, haphazard and accidental’ (p. 457). Hypotheses, according to Van Dalen, are important because they tell the researcher what should be done to get an answer, and how it should be done. Thus, the focusing of research towards testing specific hypotheses or seeking the answer to questions guides the researcher to arrive at valid conclusions. Another reason for establishing carefully formulated hypotheses or research questions is that at some stage the investigator might need to examine relationships and trends between the variables. Kerlinger (1983) remarks, ‘The scientist cannot tell positive from negative evidence unless he uses hypotheses.’ Hypotheses/questions are at the core of research activity and should, consequently, not be based on wild speculation. Moreover, they should be framed in such a way that they are capable of standing up to the rigours of testing in the course of the research. It should be noted that many hypotheses, particularly in behavioural research, cannot be tested directly because they may deal with abstractions. The investigator therefore must choose a sample of behaviour, thought or feeling that can be tested or observed directly either by the researcher or the research subject. The sample of observable behaviours and feelings and their correlates may then be evaluated in terms of their consistency or inconsistency with the formulated hypothesis. On the basis of obtained evidence, the researcher may deduce the logical consequences of the hypothesis. For example, a research worker might formulate a hypothesis that mixed ability teaching provides greater intellectual stimulation for less able children than if taught in a 6 INTRODUCTION TO RESEARCH streamed class. Two classes can be carefully selected—one containing mixed ability pupils and the other with less able pupils. A test of scholastic achievement can be administered at the end of the school academic year to both the groups. If the hypothesis were true, less able children in the mixed ability group would show significantly higher achievement scores as compared with those less able children who were taught in a segregated class. Thus, the researcher draws the consequences of the hypothesis. Some research studies may require the formulation of research questions rather than a specific hypothesis if there is very little previous knowledge about aspects of the issue to be researched. In some qualitative studies, there is no specific hypothesis at the outset but hypotheses are generated during the early stages of research (Silverman, 1993). Theory, Construct and Model At this point in mapping the domain of research, a brief description of the concepts of theory, construct and model would seem appropriate. The term ‘theory’ has a multiplicity of meanings (Snow, 1973). Its main role is to help guide the investigator/ researcher. In the social sciences, it usually implies a set of statements describing and explaining the relationship between human behaviour and the factors that affect or explain it. Best (1970) wrote that ‘a theory establishes a cause-effect relationship between variables with the purpose of explaining and predicting phenomena’ (p. 6). Kerlinger, also writing in 1970, arrived at a similar definition when he suggested that a theory was ‘a set of interrelated constructs, definitions and propositions that presents a systematic view of phenomena by specifying relations among variables with the purpose of explaining and predicting phenomena’. It may be thought that these definitions would be of questionable validity in the social sciences, including education, where it is notoriously difficult to establish cause and effect relationships, let alone predict events. Cohen and Manion (1995) cite Mouly’s (1978) definition which has general applicability: ‘If nothing else, a theory is a convenience—a necessity, really—organising a whole slough of unassorted facts, laws, concepts, constructs, principles, into a meaningful and manageable form. It constitutes an attempt to make sense out of what we know concerning a given phenomenon.’ However, the role of theory as a framework for research is not in dispute. Silverman (1993), highlighting the importance of theory, writes that ‘…theories provide a set of explanatory concepts. These concepts offer ways of looking at the world which are essential in defining a research problem…without a theory, there is nothing to research’. Thus, a theoretical framework helps the investigator summarize previous information and guide the future course of action. Sometimes the formulation of a theory may indicate missing ideas or links and the kinds of additional data required. Thus, a theory is an essential tool of research in stimulating the advancement of knowledge still further. It is also true to say that not all research is designed to test existing theories or generate new ones. Theories can range from the very simple to the extremely complicated ones. In fact, some researchers prefer to avoid complex theorizing as much as possible. RESEARCHING EDUCATION 7 In its simplest form, theory may mean a speculation, a hunch or an idea. For example, a teacher concerned with practical problems in the classroom has some idea about the best method of teaching humanities. A more complicated theory may be a synthesis of facts, an analysis of a set of variables to demonstrate their relationships with one another, or a plausible general principle to explain and predict certain phenomena. Examples of such theories may include studies which attempt to explain pupils’ motivation, their learning patterns or self-concept. Good theories are built upon facts, sound evidence and previous research evidence, and not on mere speculation. The work of most natural and social scientists can be related to the use or construction of theories of some kind. However, the distinction can be made in at least two ways. Those whose work is primarily concerned with the development of theories are often called rationalists (Travers, 1978); those who focus their attention on the collection of data or facts are often referred to empiricists. Skinner’s (1959) work, for example, can be described as an empirically oriented approach to research. In practice, however, most social scientists are both rationalists and empiricists. Another broad distinction can be drawn: some researchers spend a great deal of time in the formulation of theories and may not be concerned with their practical application, while others are primarily concerned with the application of new knowledge for the solution of everyday problems. However, even in pure research, a theory, once established, may suggest many applications of practical value. Thus, the status of theory varies considerably according to the discipline or aspect of knowledge under study. Some theories are highly sophisticated and complex while others are characterized by unevenness and simplicity. Many teachers are often suspicious of theories developed by educational researchers. They seek practical ‘advice’ and ‘guidance’ for the solution of classroom problems. They want to know why a child is poorly motivated rather than what the relations are among various elements contributing to that behaviour. Teachers, also, have their views, ideas or opinions about low motivation that are based on many years of experience or observation. Their main concern, however, is with practicalities, that is, with techniques for solving specific problems in the context of things as they are. The product of all research in the social sciences is a set of conclusions that indicate or imply a theoretical model, which may be quite different to the theory from which it began. Teachers, on the other hand, develop their theories primarily from observations which can be unsystematic. Such ‘theories’ are not based upon rigorous analysis of interrelationships between fragmented facts and observations. One of the advantages of teachers’ theories, however, is that they are easily communicated to other professional colleagues in layman’s terminology. It is also true to say that many educational practices and policies are based on teachers’ judgments. There is the need to increase the understanding of educational researchers to further the relationship between theory and practice. The challenge for the research process in education is to relate theory and practice in such a way that meaningful answers to questions are provided on the basis of scrupulously gathered, evaluated and reported evidence. 8 INTRODUCTION TO RESEARCH The term ‘construct’ is often used in the social sciences. The concept is a construction of social scientists’ imagination which helps them to understand the underlying mechanisms of an individual’s thought and behaviour. For example, many theories of learning refer to a motivational factor in human behaviour. Motivation is not directly observable—it is a theoretical construct—and hence social scientists describe the term ‘motivation’ as a construct. Constructs are used to provide a plausible explanation of consistency in human behaviour. Another term frequently used by both natural and social scientists is model. This means a close representation of certain aspects of complex phenomena used in order to gain insights into the phenomena that scientists wish to explain. Models are essentially analogies (Chapanis, 1961). For example, a teacher can help pupils to conceptualize the Earth by showing them a globe with countries, continents, mountains and oceans marked on it in different colours. Thus, the globe is a convenient model representing the important features of the earth in a way that can be easily understood by pupils. Models may also be symbolic. An example of a symbolic model is an engineer’s plan for a house construction. In the field of education, Piaget’s model of the intellect is a good example. Simulation, one of the procedures used by behavioural scientists for the development of ideas within the context of discovery, is based on the idea of a ‘model’. The use of models is quite common in the teaching-learning situation. Models may consist of words, mathematical symbols, pictures or physical objects, and can be very useful in thinking about complex phenomena. A model can provide a very simple representation of quite complex events and make them more intelligible. Models are simply tools that are used in the construction and testing of theories. Both ‘model’ and ‘theory’ may be regarded as explanatory devices or schemes having a broadly conceptual framework, though models are often characterised by the use of analogies to give a more graphic or visual representation of a particular phenomenon. Providing they are accurate and do not misrepresent the facts, models can be of great help in achieving clarity and focusing key issues in the nature of phenomena. (Cohen and Manion, 1980) Research in the Social Sciences and the Natural Sciences Research in the social sciences has become an important activity in most advanced societies. Although the social sciences are not perceived as having the same ‘scientific’ status as the natural sciences (in terms of explanation, control and prediction) a great deal of progress has been made in the systematic study of human behaviour since the beginning of this century. Such knowledge of human behaviour has provided the basis for a variety of social technologies. The importance of research in the social sciences such as education, anthropology, economics and social psychology cannot easily be overestimated. It is also acknowledged that the greatest obstacle to progress in the social sciences is the extreme complexity and variability of human behaviour. Many people argue that it is RESEARCHING EDUCATION 9 much more difficult to develop sound theories of human behaviour from which predictions can be made than it is to develop theories that predict events in the physical sciences. Similarly, in the field of psychology, it is far more difficult to understand and explain the development of an individual’s personality or the processes involved in human thought and problem-solving than the forces operating in physics and chemistry. In the natural sciences, rigorous controls of systematic observation and analysis are often applied, whereas such control is often not possible with human subjects. Despite the difficulties outlined above, the social sciences have made a significant contribution to our understanding of the society in which we live. It would now seem appropriate to attempt a brief examination of some of the crucial differences between the two broad groups of sciences. • In the social sciences, many researchers deal with events or occurrences which are unique in time or in individual development. Historical and many descriptive studies, for example, are concerned with unique and non-repeatable phenomena. Also, there are many social events which cannot be observed directly. For example, an individual’s past experience cannot be observed directly; the researcher has to rely upon written information or a person’s recall of past events. It may be possible to assess children’s reading levels and vocabulary but it will be difficult to determine the motives or the intensity of the feelings of individual children objectively. On the other hand, a pathologist can test a blood sample and the findings can easily be reproduced by other pathologists. • In the social sciences, it is often impossible to control the factor or factors being studied. For example, in a classroom situation there are very few factors which can be identified and controlled (e.g. age, sex, and height of pupils), others can be identified but not controlled (e.g. hobbies), and many other significant factors can neither be identified nor controlled. The natural scientist is rarely confronted with the same kind of problem. • In most cases, natural science has to deal with a limited number of variables that are amenable to manipulation and precise measurements. The social scientist, on the other hand, may have to deal with a large number of variables simultaneously in order to explain phenomena satisfactorily. Another difficulty for the social scientist is the complex nature of variables such as temperament, attitude, motivational and personality characteristics which are not only difficult to assess but they interact in subtle ways. • In the social sciences it is difficult to make wide generalizations, because no two individuals are exactly alike in feelings, drives or emotions. What may be a reasonable explanation for one may be irrelevant for another. Furthermore, no one person is normally consistent from one situation to another because of intervening experiences. For example, if a student took psychological tests for the second time his or her behaviour would not be quite the same as that of the one who had not taken the tests previously. The response is likely to be influenced by the interaction 10 INTRODUCTION TO RESEARCH with various elements in his or her environment. In the natural sciences it is often, though not always, possible to repeat the situation, without prejudicing the outcome. • The behaviour of an individual is influenced by the research process itself. The knowledge of being involved in an investigation makes individuals conscious that their behaviour is being observed or studied, and this can affect their response to the situation. However, natural scientists face similar problems. Heisenberg in the 1920s formulated the uncertainty principle which demonstrated that it was impossible to determine the velocity and position of a sub-atomic particle because the process of measurement changed its velocity in ways that could not be predicted. This led to the development of quantum mechanics theory which does not predict a single definite result for an observation but provides for a number of possible outcomes and says how likely each one of these is. Quantum mechanics theory therefore creates an unavoidable element of unpredictability in science. It is important to stress that it is an extremely successful theory and underlies nearly all of modern science and technology (Hawking, 1988). • In the social sciences the researcher’s interests, background, ability, prejudices, attitudes and values are likely to affect the research process and consequently its outcome. In the natural sciences, however, this situation is less likely to occur. • In the natural sciences, complex constructs are defined in operational terms whereas the social sciences have been limited by a lack of adequate definitions. Many human characteristics (e.g. anxiety, hostility, motivation) are not directly observable. As constructs they can only be postulated, and inferred on the basis of test scores. Furthermore, there is a poverty of tools or instruments for ‘accurate’ measurement in the social sciences which makes it more difficult to describe many of the constructs. It must be stressed, however, that the researcher working in the field of social sciences must exercise great caution in making generalizations from the findings. There is a need to adopt a research strategy incorporating qualitative judgments and quantitative measurements. By using a variety of techniques or tools, it may be possible to generate sound theories to explain human behaviour. Types of Research Research has been classified in various ways, e.g. by method, by area of academic discipline (sociological, psychological, anthropological, etc.), by type of data collection procedure (e.g. psychological tests, observation, questionnaire, and so on) or by purpose (whether contributing to knowledge or having policy implications). There has been considerable controversy among decision makers as to which type of research is of most value. However, if we define science in a broad sense it is possible to produce a taxonomy of types of research. Hitchcock and Hughes (1989) point out that the term ‘research’ is often prefixed by concepts like ‘pure’, ‘basic’, ‘applied’, or ‘action’. They also attempt to explore the connections between these types of research. From the various RESEARCHING EDUCATION 11 combinations available in the literature the following classifications would seem appropriate, although these do not represent discrete categories: • • • • pure or basic research; applied or field research; action research; evaluation research. This typology has the advantage of highlighting some critical differences between research that is oriented to the development of theory and that designed to deal with practical problems. Pure or Basic Research This type of research is typically oriented towards the development of theories by discovering broad generalizations or principles. It has drawn its pattern and initiative from the physical sciences emphasizing a rigorous, structured type of analysis. The main purpose of ‘pure’ or ‘basic’ research is to discover facts which are fundamental and important in the sense that their discovery will extend the boundaries of our knowledge in a particular area or discipline. Pure research is not primarily concerned with understanding practical problems. It is usually carried out in a laboratory or other carefully controlled situation which implies that control and precision are maintained at the cost of reality. In recent years, most learning theories have been questioned on the grounds that studies were conducted in a controlled situation with animals as subjects and therefore the findings cannot be directly applied to human problems. However, the findings of many basic psychological research studies have been applied to educational problems—the work of Skinner, for example. It is true to say that the findings from such work may take some time before they are brought into prominence or become part of the general stock of knowledge. Applied or Field Research This type of research is concerned primarily with the application of new knowledge for the solution of day-to-day problems. This does not mean that it is less rigorous in its approach than other forms of research. Although applied or field research has some of the characteristics of pure research (e.g. the use of sampling techniques, inferences about the target population) its purpose is to improve a process by testing theoretical constructs in actual situations. Most educational research is applied research, for it aims at establishing generalizations about teaching-learning situations. As one would expect, control is often sacrificed in field research in order to conduct the enquiry in a setting similar to that in which the findings are applied. It should be mentioned that sometimes applied research also utilizes experimental techniques, and hence in such research designs it is difficult to make a clear distinction 12 INTRODUCTION TO RESEARCH between basic and applied research. However, applied research needs to be conducted in order to determine how various theories operate in the actual situation. Action Research The term ‘action research’ was first introduced in the fields of social psychology, social work and education. It is a type of applied social research differing from other types in the immediacy of the researcher’s involvement in the action process. Action research is more concerned with the immediate application rather than the development of theory. It focuses on a specific problem in a particular setting. In other words, its findings are usually judged in terms of their applicability in a specific situation. Action research is similar to applied research in many ways but the fundamental difference is that applied research allows generalizations of its results. Furthermore, applied research usually involves a large number of cases for studies whereas action research can be conducted in a modest way by using a very small sample (e.g. a single classroom or a group of children within it). In recent years, action research has generated a great deal of interest in the field of education. It has been employed in curriculum development, professional development, institutional improvement and policy development. It is now widely acknowledged that limiting educational research to professional researchers alone is to take a narrow view of the educator’s role. Classroom teachers can be better decision-makers and more effective practitioners if they are encouraged to conduct action research. For example, if it is proposed to alter the organization of a school and its curriculum, it is most useful to have one or more researchers on the staff who can monitor the effects of the changes. Thus, action research is usually conducted with the aim of implementing a change in a given situation (for further discussion, see Chapter 5). Evaluation Research The term ‘evaluation research’ is often used to refer to the systematic procedures which are adopted over a period of time to collect and process data concerning the effectiveness of a particular programme or set of events. For example, a teaching programme can be evaluated at several stages. If evaluation is carried out at intermediate stages to implement changes in the programme, it is called ‘process’ or ‘formative’ evaluation. Evaluation at the completion of the planning programme is known as ‘summative’ evaluation. Evaluation research has been widely employed in the last four decades. Many social action programmes and curriculum innovations have adopted this type of research in order to monitor the effectiveness of such programmes. Evaluation research highlights the symbols of measurement and scientific neutrality but attempts to minimize the influence of the behavioural science perspective. Evaluation research of the summative type is often used to assess programmes designed to engineer change (see Chapter 5 for more details).
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