After years of extensive use, the Gesell scale a. still has a ...

[kodithompson]

After years of extensive use, the Gesell scale
 
  a. still has a number of problems.
  b. has relatively few problems.
  c. is no longer used in clinical settings.
  d. has excellent documentation in terms of reliability and validity.

Question 2

If a variable has a restricted range, it is difficult to estimate a validity coefficient due to a lack of
 
  a. criterion validity.
  b. variability.
  c. adequate sample size.
  d. cross validation.

[zhanghao]

Answer to Question 1

a

Answer to Question 2

b

[kodithompson]

Excellent

[robbielu01]

Gracias!