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

Questions

90 min

Time Limit

50%

Passing Score

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📚 WAIS Topics to Study (35)

Applications · 7 cards Core Structure · 7 cards Core Structure · 7 cards Core Structure · 7 cards Core Structure · 7 cards Perceptual Reasoning Index (PRI) · 7 cards Perceptual Reasoning Index (PRI) · 7 cards Perceptual Reasoning Index (PRI) · 7 cards Perceptual Reasoning Index (PRI) · 7 cards Performance Validity and Effort Indicators · 7 cards Performance Validity and Effort Indicators · 7 cards Performance Validity and Effort Indicators · 7 cards Performance Validity and Effort Indicators · 7 cards Processing Speed Index (PSI) · 7 cards Processing Speed Index (PSI) · 7 cards Psychometric Properties and Norms · 7 cards Score Comparisons and Discrepancy Analysis · 7 cards Verbal Comprehension Index (VCI) · 7 cards WAIS-5 Structure: Fluid Reasoning (FRI) and Visual Spatial (VSI) Indexes · 7 cards WAIS-5 Structure: Fluid Reasoning (FRI) and Visual Spatial (VSI) Indexes · 6 cards Administration Rules · 6 cards Historical Development of the Wechsler Scales · 6 cards Performance Validity and Effort Indicators · 6 cards Report Writing and Communicating WAIS Results · 6 cards Ethical and Clinical Application · 6 cards FSIQ and GAI Interpretation · 6 cards Perceptual Reasoning Index (PRI) · 6 cards Processing Speed Index (PSI) · 6 cards Psychometric Properties and Norms · 6 cards Verbal Comprehension Index (VCI) · 6 cards

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✍️ Sample WAIS Questions & Answers

1. 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.

2. 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.

3. 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.

4. What is the minimum number of subtests required to generate a valid FSIQ on the WAIS-IV using the standard core battery?

✓ 10

All 10 core subtests must be administered (or replaced via one substitution per index) to compute a valid FSIQ.

5. An examinee scores in the borderline range on Vocabulary but very low on Digit Span. Why might a Vocabulary minus Digit Span difference score be used as a validity indicator?

✓ Vocabulary is usually stable after brain injury, while Digit Span is easy to suppress

Brain injury usually affects Vocabulary relatively little, so an unusually large gap where Digit Span is much lower may suggest suppressed effort.

6. An examinee with a significant upper-extremity motor impairment needs a visual-spatial estimate. Which subtest is most appropriate?

✓ Visual Puzzles

Visual Puzzles requires only pointing or naming responses, making it suitable when motor construction is impaired.

🎯 Free WAIS Practice Tests

Processing Speed Index (PSI) · 7 questions Processing Speed Index (PSI) · 7 questions Perceptual Reasoning Index (PRI) · 7 questions Verbal Comprehension Index (VCI) · 7 questions Perceptual Reasoning Index (PRI) · 7 questions Perceptual Reasoning Index (PRI) · 7 questions Perceptual Reasoning Index (PRI) · 7 questions Core Structure · 7 questions Core Structure · 7 questions Applications · 7 questions

📖 WAIS Guides & Articles

Your WAIS Study Path

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

🃏 WAIS Flashcards (225)🏆 WAIS Exam Simulation

What Practice Test Geeks adds beyond an AI chat for WAIS

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

A timed, full-length WAIS mock exam — 50 questions in 90 minutes with a 50% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
A fixed WAIS question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
A printable WAIS cheat sheet you can print or save as a PDF.
WAIS flashcards built from the same question bank.
Free WAIS practice tests with the correct answer shown after each question.

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