Before publishing her test of musical aptitude, professor reed first administered the test to a representative sample of people. this was most clearly necessary for purposes of
a. standardization
b. reliability
c. predictive validity
d. content validity

a. standardization

Explanation:

Standardization means creating uniformity in scoring and administration of the test. In order to make effective comparison in scores from different people testing conditions must be kept uniform.

Standardization of a test is tested on a representative sample for which it is designed , the representative sample is used to determine the norms.

Norms for personality test are the same for aptitude test they have to correspond to the performance of the participants.

answer; (c) on the left side; ; ; ; ; ; ; ; ; ; ; ; ; speech is localized on the left side of the brain;

the answer is       political office  

hope this .