Sample Interpretive Report for the Leiter-3

Sample Interpretive Report for the Leiter-3
Identifying Information:
Patient name: Donald Jones
Date of Birth: 08/04/1984
Age at Testing: 27 Years, 3 months, 1 day
Place of Examination: Clinic
Examiner: Dr. Davis, Psy.D.
Dates of Evaluation: 11/05/2011
Date of Report: 11/06/2011
Test Administered:
Leiter International Performance Scale, 3rd Edition (Leiter-3)
Test Results:
Cognitive Subtests
Subtest
Figure Ground (FG)
Form Completion (FC)
Classification/Analogies
(CA)
Sequential Order (SO)
Visual Patterns (VP)
Nonverbal IQ
Raw Score
30
33
26
Scaled Score
13
12
11
Percentile
84
63
75
47
NA
15
NA
95
NA
Sum of 4 Scaled
Scores
51
Nonverbal
IQ/Composite
Score
113
Percentile
81
95% Confidence
Interval Range
107-119
Note. All scaled scores are normalized standard scores with mean of 100 and standard deviation of 15. NA means
that all subtests for the composite were not administered in this case.
Attention/Memory Subtests
Subtest
Attention Sustained (AS)
Forward Memory (FM)
Reverse Memory (RM)
Nonverbal Stroop
Raw Score
163
22
16
21
Scaled Score
12
8
11
8
Percentile
75
37
63
37
Incongruent Correct (NSic)
Nonverbal Stroop
Congruent Correct (NScc)
Nonverbal Stroop Effect
(NSeff)
34
11
63
13
12
75
Attention/Memory
Composite
Sum of Scaled
Scores
Composite Score
Percentile
95% Confidence
Interval Range
Nonverbal Memory
19
97
42
87-107
Processing Speed
20
100
50
90-110
Note. All scaled scores are normalized standard scores with mean of 100 and standard deviation of 15. – means
that all subtests for the composite were not administered in this case.
Supplemental Attention/Memory Scores
Attention Scores
Raw Scores
Scaled Scores
Percentile Rank
Attention Sustained
Errors (ASe)
0
12
75
Attention Divided
Correct (ADc)
33
6
10.5
Attention Divided
Incorrect (ADi)
3
7
17.4
Raw Scores
Scaled Scores
Percentile Rank
Nonverbal Stroop
Congruent Incorrect
(NSCi)
0
12
75
Nonverbal Stroop
Incongruent Incorrect
(NSii)
0
12
75
Nonverbal Stroop
Scores
Note. All scaled scores are normalized standard scores with mean of 100 and standard deviation of 15. -- means
that all subtests for the composite were not administered in this case.
Examiner Rating Scale Scores
Section A-D
Raw Score
Scaled Score
Percentile Rank
Attention
28
7
15.8
Organization/Impulse
Control
20
5
6
Activity Level
11
Sociability
15
Cognitive/Social
Composite Scores
74
85
16
Raw Score
Scaled Score
Percentile Rank
Energy and Feelings
18
12
75
Regulation
16
Anxiety
15
6
7.8
Sensory Reaction
11
Emotions/Regulations
Composite Scores
60
85
16
Section E-H
Composite Score Differences By Age Level
Nonverbal IQ
vs.
Nonverbal Memory
16*
Nonverbal IQ
vs.
Processing Speed
13*
Nonverbal Memory
vs.
Processing Speed
-3
NOTE: Differences between scores were calculated for all examinees in the standardization sample. One rule of
thumb is to consider any difference amount occurring less than 5% of the time becomes a possible “clinically
significant” difference in the profile and should be noted in any report of test results. In addition to this data of
“frequency of differences,” the user should note whether or not the differences in pairs of scores are statistically
significant (See Table H.1 in Manual).
*Indicates significance.
Interpretative Results:
Donald is a bright young man, whose nonverbal IQ falls within the Average to Above Average range. He
performs best on tasks which require nonverbal reasoning abilities which focus specifically on rule
generation related to problems of seriation or sequential information (SO Scaled Score= 15). Donald
does well on tasks of basic visual interference, and can easily avoid distractions while searching for
specific information (FG Scaled Score = 13). On tasks which require organization and the ability to use
deductive reasoning, Donald also did well (FC Scaled Score = 12). Donald also demonstrated abilities to
generate rules out of partial information, and inductively hypothesize what piece would complete a
whole pattern (CA Scaled Score = 11). Overall, Donald showed no weaknesses in his nonverbal abilities
measures by the Leiter-3.
On the Attention/Memory Battery, Donald did have significant differences between his nonverbal IQ
and his nonverbal memory, as well as between his nonverbal IQ and his processing speed. However,
both his nonverbal memory and his processing speed abilities fall within the average range (NV Memory
= 97; Processing Speed = 100).
Oddly, Donald performed better on a task of reverse memory, than he did on forward memory. This
type of pattern suggests that memory span or attentiveness are in question. His performance on the
Reverse Memory Subtest indicates he has the complex mental ability requiring him to store and juggle
information using mental effort that requires good working memory (RM Scaled Score = 11). On
Forward Memory, Donald struggled slightly with memory span, which is required on this subtest (FM
Scaled Score = 8). His slightly below average performance on this subtest, especially when compared
with his other scores, indicates this is an area of weakness for Donald.
Donald’s Processing Speed was also composed of differing scores. He did well on tasks which require
sustained attention, visual prolonged attention, visual scanning, and motoric inhibition (AS Scaled Score
= 12). The score that best discriminates individuals diagnosed with ADHD from individuals without
attentional deficits is the errors score on the Attention Sustained Subtest. Donald had zero errors, thus
indicating no signs of ADHD. Donald’s relative struggle in Processing Speed occurred on the Nonverbal
Stroop Incongruent Correct task (NSic Scaled Score = 8). He was much slower at this task, which
impacted his score. He may not have been able to hold the incongruent image in his mind long enough
to scan the possible answers, should he actually have struggles with his memory span. However, a more
logical reason for this discrepancy, considering Donald performed well throughout the nonverbal IQ
tasks, is that he was somewhat anxious about the task, and so he slowed his performance, and did not
accomplish as many (Anxiety Scaled Score on Examiner’s Rating Scale = 6).
Overall, Donald is functioning in the Above Average range of general intelligence, but experiences some
weaknesses in Nonverbal Memory and Processing Speed. His scores on the Examiner Rating Scale
indicated he struggled with symptoms of anxiety and also organization and impulse control, which
appear to have affected his performance on this assessment. This should be considered in his everyday
life as well, as these symptoms may interfere with his ability to engage in daily activities.