The degree to which a test measures what it's supposed to measure is its
A) reliability.
B) categorization.
C) validity.
D) developmental index.
Question 2
The Bayley Scales of Infant Development consist of
A) two separate psychomotor development indices.
B) a mental development index and an emotional maturity index.
C) a psychomotor growth index and an emotional maturity index.
D) a psychomotor growth index and a mental development index.
