Among his motivations for the development of the Wechsler scales ...

[SO00]

Among his motivations for the development of the Wechsler scales of intelligence, was David Wechsler's belief that
 
  a. one underlying mental ability was solely responsible for the concept of intelligence.
  b. a single intelligence score was the most appropriate measure of human intelligence.
  c. human intelligence was significantly influenced by nonintellectual factors.
  d. existing intelligence scales were adequate to measure the intelligence of all age groups.

Question 2

Sources of error associated with time sampling are measured using
 
  a. the test-retest method.
  b. the split half method.
  c. KR 20.
  d. the alpha method.

[joshbk44]

Answer to Question 1

c

Answer to Question 2

a