Pepperdine University WISC-IV Interpretation Psych. 601: Himelstein PROFILE ANALYSIS AND INTERPRETATION FOR THE WISC-IV
WISC-IV INTERPRETATION WORKSHEET
Based on Sattler (2004) Assessment of Children: WISC-IV and WPPSI-III Supplement, pages 135-139, “A Successive Level Approach to Test Interpretation”. Use 95% confidence level. Use .05 critical level for statistical significance. Useful Tables and Handouts for WISC-IV Interpretation Pre-Level 1: Handout #1: WISC-IV Record Form: Cover Page and Analysis Page Sattler Table C-5
Handout #2a: Not used for 601 #2b: Not used for WISC-IV #2c: Sattler Pages 118-122 Handout #3: Sattler Table C-2
Handout #4a: Sattler Subtest Worksheet #4b: WISC-IV Manual, Table B.3 #4c: Sattler Subtest Comparisons, Pages 126-130 Pre-Level I: Complete the Cover Page of the WISC-IV Record Form and the Analysis Page. Transfer the following scores from the cover page of the WISC-IV Record Form. Use Psychometric Conversion Table for Classification terminology. IQ/Index Score FSIQ VCI POI WMI PSI Percentile 95% Confidence Interval Classification
Level I: Full Scale IQ. Description of Abilities. (Handout #1, Sattler Table C-5).
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Continued-Level I: Describe Index abilities measured. Index Verbal Comprehension Abiliites Measured
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Level II: Index Scores. Analyze differences between Index Scores. A.) B.) C.) D.) Significant Difference: WISC-IV Analysis Page, Discrepancy Comparisons Base Rate: WISC-IV Analysis Page, Discrepancy Comparisons Description of Abilities: Sattler Table C-5 (Handout #1) Hypotheses for Index Score Differences: Sattler pages 118-122 (Handout #2c)
Report only the Index score discrepancies that reach significance at the .05 level. Index Scores Discrepancy Base Rate Description of Abilities and Comparisons
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Level III: Subtest Scores: Determining Strengths and Weaknesses. Analyze differences between a single subtest score and an average of subtest scores. If VCI-PRI differences are significant, compute separate means for each. If there are no VCI-PRI differences, use the overall mean. A.) B.) C.) D.) Significant Difference: WISC-IV Analysis Page Base Rate: WISC-IV Analysis Page Percentile and Classification: Psychometric Conversion Table Description of Abilities: Sattler Table C-2 (Handout #3)
Remember: Significant positive differences are considered to be strengths; significant negative differences are considered to be weaknesses. Record only the significant findings here, organized by strengths and weakness and by Verbal and Performance Scales. VERBAL STRENGTHS Subtest Strengths Base Rate Percentile Rank Classification Ability Measured
VERBAL WEAKNESSES: Subtest Weaknesses Base Rate Percentile Rank Classification Ability Measured
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Continued: Level III: Subtest Scores: Determining Strengths and Weaknesses. PERFORMANCE STRENGTHS: Subtest Strengths Base Rate Percentile Rank Classification Ability Measured
PERFORMANCE WEAKNESSES: Subtest Weaknesses Base Rate Percentile Rank Classification Ability Measured
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Level IV: Intersubtest Score Comparisons. Complete Sattler Subtest Analysis Worksheet to identify significant differences between pairs of subtest scores. Compare pairs of individual subtest scores within the VCI, PRI, WMI, PSI, and across the Indexes. A.) Subtest Analysis: Sattler Subtest Worksheet (Handout #4a) B.) Significant Difference: (Handout #4b) WISC-IV Manual, Table B.3 C.) Comparisons Between Subtests: (Handout #4c) Sattler pages 126-130 Record only significant findings from Sattler Subtest Worksheet. Record only in the > “greater than” direction. Modify language in Sattler’s hypotheses so it is reflective of your specific data. Comparison of VCI Subtests 1.Similarities/Comprehension Findings > Hypotheses
3.Similarities /Word Reasoning
Comparison of PRI Subtests 1.Matrix Reasoning/Block Design >
2. Matrix Reasoning/Pic. Concepts
3. Pic. Completion/Block Design
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Continued: Level IV:Intersubtest Score Comparisons 4. Matrix Reasoning/Pic.Completion >
5. Pic. Completion/Pic. Concepts
Comparison of WMI Subtests 1.Digit Span/Letter Number Seq.
Findings Hypotheses >
2. Digit Span/Arithmetic
3. DS Forward/DS Backward
Comparison of PSI Subtests 1.Coding/Symbol Search >
Comparison of VCI and PRI Subtests 1.Similarities/Block Design >
2. Similarities /Pic. Concepts
3. Similarities/Matrix Reas.
4. Comprehension/Matrix Reas.
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Continued: Level IV:Intersubtest Score Comparisons Findings Hypotheses 5. Vocabulary/Matrix Reas. >
6. Word Reas./Pic. Concepts
Comparison of VCI and WMI Subtests 1.Comprehension/Arithmetic >
2. Similarities /Arithmetic
Comparison of PRI and WMI Subtests 1.Pic. Concepts/Arithmetic >
Comparison of PRI and PSI Subtests 1.Matrix Reas./Coding >
2. Matrix Reas./Sym. Search
Comparison of WMI and PSI Subtests 1.DS, LN /CO, SS >
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Level V: Intrasubtest Patterns. Examine pattern of responses within subtests to see if there is a consistent pattern of progress, or if there is variability, i.e., missing easier items while answering harder items correctly (Intrasubtest scatter). Identify subtests, describe relevant behavioral observations, and develop hypotheses for scatter.
Level VI: Qualitative Analysis. Examine content of responses within subtests for interesting or unusual verbalizations that may provide clinical insight.