Psychometric Properties and Norms Flashcards
7 cards from real WAIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Psychometric Properties and Norms flashcards as text
The Flynn Effect refers to which observed trend in IQ test norms?
Answer: Rising raw score performance over generations requiring periodic renorming
The Flynn Effect is the well-documented phenomenon of rising raw score performance across generations, necessitating updated norms.
When interpreting WAIS-IV subtest scores, a scaled score of 10 represents performance at which level?
Answer: Exactly at the population mean
WAIS-IV subtest scaled scores have a mean of 10 and SD of 3, so a score of 10 is exactly average.
Which WAIS-IV reliability method is most appropriate for evaluating the consistency of Processing Speed subtests?
Answer: Test-retest reliability
Processing Speed subtests are speeded tasks where split-half methods are inappropriate; test-retest reliability is the standard approach.
What is the standard error of measurement (SEM) primarily used for in WAIS-IV score interpretation?
Answer: Constructing confidence intervals around obtained scores
The SEM is used to build confidence intervals, expressing the range within which the true score likely falls.
Discriminant validity evidence for the WAIS-IV is typically demonstrated by showing that WAIS-IV scores do NOT correlate highly with measures of which construct?
Answer: Personality traits
Discriminant validity is shown when WAIS-IV scores correlate weakly with theoretically unrelated constructs such as personality traits.
A clinician compares a client's WAIS-IV FSIQ with their WMS-IV memory scores. This practice reflects which type of validity evidence?
Answer: Convergent and discriminant validity
Comparing WAIS-IV and WMS-IV scores examines both convergent validity (related cognitive domains) and discriminant validity (distinct constructs).
The base rate of a given discrepancy between WAIS-IV index scores is important because it indicates which of the following?
Answer: How frequently that discrepancy occurs in the normative population
Base rates show how common a discrepancy is in the general population, helping clinicians judge whether a difference is unusual.