LSP Neuropsychological Assessment 4

Question 1

Which performance validity test (PVT) uses a 'reliable digit span' cutoff calculated from the WAIS Digit Span subtest?

Accepted Answer

Reliable Digit Span (RDS)

Answer

Reliable Digit Span is computed by summing the longest Digit Span Forward and Backward sequences passed on both trials; cutoff scores below empirically derived thresholds indicate invalid performance.

Question 2

Transcortical motor aphasia is distinguished from Broca's aphasia by the preservation of:

Accepted Answer

Repetition

Answer

Transcortical motor aphasia spares the perisylvian language core, so repetition is intact, whereas spontaneous speech is non-fluent and sparse, similar to Broca's aphasia.

Question 3

A neuropsychologist evaluating a child for ADHD finds elevated scores on continuous performance tests (CPT) for both omission and commission errors. Omission errors primarily reflect deficits in:

Accepted Answer

Sustained attention and vigilance

Answer

Omission errors on CPTs occur when the child fails to respond to targets, indicating lapses in sustained attention, while commission errors reflect impulsive responses to non-targets.

Question 4

The Wechsler Memory Scale-IV (WMS-IV) Auditory Memory Index primarily includes which subtests?

Accepted Answer

Logical Memory and Verbal Paired Associates

Answer

The WMS-IV Auditory Memory Index is composed of Logical Memory (story recall) and Verbal Paired Associates (word-pair learning), both verbal memory tasks.

Question 5

In interpreting the significance of a single low test score in a neuropsychological battery, the concept of 'abnormality versus rarity' is important because:

Accepted Answer

A statistically rare score may still be within the base rate of chance lows in a healthy person taking many tests

Answer

As the number of tests administered increases, the probability of obtaining at least one low score by chance also increases, necessitating base-rate correction before concluding impairment.

(LSP) Licensed Specialist in Psychology Certification Practice Test

(LSP) Licensed Specialist in Psychology Certification Practice Test

LSP Neuropsychological Assessment 4