CVE Psychometric Testing & Interpretation 4 — Questions and Answers
Question 1: A client with a traumatic brain injury scores two standard deviations below the mean on a processing speed subtest. Using the Wechsler scale, this score falls in which descriptive category?
- Low average
- Borderline
- Extremely low (Correct answer)
- Mild impairment
Correct answer: Extremely low
On Wechsler scales, a score two standard deviations below the mean (approximately 70) falls in the 'extremely low' classification range.
Question 2: Which of the following BEST describes an ipsative score interpretation?
- Comparing a client's score to a normative group
- Comparing a client's performance across subtests within the same battery (Correct answer)
- Comparing scores across two different clients
- Comparing a client's pre- and post-training scores
Correct answer: Comparing a client's performance across subtests within the same battery
Ipsative interpretation focuses on intra-individual differences—identifying a client's relative strengths and weaknesses compared to their own performance profile.
Question 3: The Purdue Pegboard Test is used in vocational evaluation to assess:
- Cognitive processing speed and memory
- Fine motor dexterity and bimanual coordination relevant to manual jobs (Correct answer)
- Gross motor strength and endurance
- Visual-spatial reasoning and perception
Correct answer: Fine motor dexterity and bimanual coordination relevant to manual jobs
The Purdue Pegboard measures finger, hand, and arm dexterity as well as bimanual coordination, predicting performance in assembly and manufacturing occupations.
Question 4: Which threat to internal validity occurs when participants' scores improve simply because they have taken the test before?
- Selection bias
- Testing effect (practice effect) (Correct answer)
- Instrumentation
- Maturation
Correct answer: Testing effect (practice effect)
The testing or practice effect refers to score gains on a retest that result from prior exposure to the test items rather than true skill improvement.
Question 5: In evaluating a client from a culturally and linguistically diverse background, which consideration is MOST critical when selecting a psychometric instrument?
- Using the longest available battery to maximize data collection
- Ensuring the normative sample includes individuals with similar cultural and linguistic backgrounds (Correct answer)
- Selecting the lowest-difficulty instrument available
- Administering only performance-based subtests regardless of the referral question
Correct answer: Ensuring the normative sample includes individuals with similar cultural and linguistic backgrounds
Valid interpretation requires that the normative group reflect the client's background; instruments normed on dissimilar populations may yield biased, uninterpretable results.
Question 6: A positively skewed distribution of test scores indicates that:
- Most scores cluster at the high end with a tail toward low scores
- Most scores cluster at the low end with a tail toward high scores (Correct answer)
- Scores are evenly distributed on both sides of the mean
- The test has no discriminating items
Correct answer: Most scores cluster at the low end with a tail toward high scores
A positively skewed distribution has most scores bunched at the lower end, with the tail extending toward higher values.
Question 7: The VALPAR Component Work Samples (VCWS) assess vocational functioning by:
- Administering paper-and-pencil cognitive tests
- Simulating actual job tasks to measure work-related abilities under standardized conditions (Correct answer)
- Using structured interviews to gather work history
- Measuring cardiovascular response to occupational stress
Correct answer: Simulating actual job tasks to measure work-related abilities under standardized conditions
VALPAR work samples replicate real-world job tasks in a standardized setting, providing performance data on physical, cognitive, and motor vocational abilities.
CVE Psychometric Testing & Interpretation 4
A client with a traumatic brain injury scores two standard deviations below the mean on a processing speed subtest.
Using the Wechsler scale, this score falls in which descriptive category?