WAIS Study Guide 2026

Everything you need to pass the WAIS exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 WAIS Exam Format at a Glance

50
Questions
90 min
Time Limit
50%
Passing Score

📚 WAIS Topics to Study (63)

✍️ Sample WAIS Questions & Answers

1. The WAIS-IV normative age bands for adults 70 and older are typically narrower (e.g., 70-74, 75-79) compared to younger bands. Why?
✓ Cognitive abilities decline faster with age in older adults, requiring finer distinctions

Narrower age bands in older adult ranges capture the accelerating rate of age-related cognitive change that occurs in later adulthood.

2. A psychologist is administering the WAIS and needs to calculate the Verbal Comprehension Index (VCI). Which combination of CORE subtests must be administered?
✓ Similarities, Vocabulary, Information

On the WAIS-IV, the core subtests that comprise the Verbal Comprehension Index are Similarities, Vocabulary, and Information. Comprehension is a supplemental subtest for this index.

3. On the WAIS-IV normative tables, FSIQ scores between 90 and 109 are classified as:
✓ Average

The Average classification spans FSIQ scores of 90–109 in the WAIS-IV classification system.

4. A clinician notes that an examinee's VCI is 108 and WMI is 88. The critical value at p < .05 is 11 points. What is the correct interpretation?
✓ The 20-point discrepancy is statistically significant, but base rate data are needed to judge clinical meaningfulness

Because 20 points exceeds the critical value of 11, the difference is statistically significant; the clinician must then consult base rate tables to determine how commonly such a difference occurs in the normative sample.

5. Regression to the mean is an important consideration in WAIS-IV discrepancy analysis because:
✓ Predicted achievement scores derived from ability scores must account for the fact that extreme ability scores overestimate expected achievement

Because of imperfect test-criterion correlations, predicting achievement from an extreme ability score (very high or very low) requires adjusting toward the mean to avoid over- or under-predicting performance.

6. A psychologist is administering the WAIS-IV. Which combination of core subtests contributes to the Perceptual Reasoning Index (PRI)?
✓ Block Design, Matrix Reasoning, Visual Puzzles

The three core subtests that form the Perceptual Reasoning Index (PRI) on the WAIS-IV are Block Design, Matrix Reasoning, and Visual Puzzles. These tasks require visual analysis, synthesis, and nonverbal abstract problem-solving.

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Your WAIS Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation
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