42. A large number of people were asked to answer only the odd-numbered questions on a test. Later, they are asked to answer only the even-numbered questions. By comparing each person's two scores, a determination of the test's __________ reliabili...

A large number of people were asked to answer only the odd-numbered questions on a test. Later, they are asked to answer only the even-numbered questions. By comparing each person's two scores, a determination of the test's __________ reliability could be made.

1. split-half
2. equivalent form
3. test-retest
4. alternative form