If a test measures a single construct then:
a. The items should correlate with the total score
b. The items should not correlate with the total score
c. The test should not correlate with other measures of the same construct
d. There must be a reliable alternative form.
a. The items should correlate with the total score
b. The items should not correlate with the total score
c. The test should not correlate with other measures of the same construct
d. There must be a reliable alternative form.