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Core Structure Flashcards

7 cards from real WAIS practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 7 Core Structure flashcards as text
  1. Which WAIS-IV subtest is most analogous to the classic 'Vocabulary' measure of crystallized intelligence (Gc)?

    Answer: Vocabulary

    Vocabulary, which asks examinees to define words, is the prototypical measure of crystallized verbal knowledge (Gc) and typically has the highest reliability in the VCI.

  2. In Cattell-Horn-Carroll (CHC) theory terms, the WAIS-IV Processing Speed Index maps most directly onto which broad ability?

    Answer: Processing Speed (Gs)

    The PSI subtests (Coding, Symbol Search) load primarily on the Gs broad ability in CHC theory, representing speed of performing simple cognitive tasks.

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

    Answer: 10

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

  4. Which aspect of WAIS-IV administration standardization is critical for valid score interpretation?

    Answer: Following verbatim instructions and timing rules exactly as specified in the manual

    Standardized administration requires strict adherence to scripted instructions and timing procedures so that examinee scores can be validly compared to normative data.

  5. The Digit Span subtest in WAIS-IV includes which three task components?

    Answer: Forward, Backward, and Sequencing

    WAIS-IV Digit Span includes Digit Span Forward, Digit Span Backward, and Digit Span Sequencing (arranging digits in ascending order), added in this edition.

  6. Which WAIS-IV index score shows the most pronounced age-related decline across adulthood in standardization data?

    Answer: Processing Speed Index

    Processing Speed shows the steepest normative decline with age, consistent with the broader literature on cognitive aging and fluid abilities.

  7. What does a Reliable Change Index (RCI) allow a clinician to determine when re-administering the WAIS?

    Answer: Whether score changes between two administrations exceed measurement error and represent true change

    The RCI accounts for test-retest reliability and practice effects, allowing the clinician to judge whether observed score changes are statistically meaningful rather than due to chance.