Early peoples believed that "possession" by both good and evil spirits was possible

What term describes when participants drop out of a longitudinal study?

a. selective survival b. attrition c. cohort effect d. selective sampling

The Test Anxiety Questionnaire distinguishes between the ____ drive and the ____ drive

a. learned task; learned anxiety b. stress; anxiety c. learned task; learned hopelessness d. learned helplessness; learned anxiety