________ are more or less plausible ideas used to explain something (e.g., a behavior) and can be tested using research methods

One might expect an ambassador forced to return on short notice to his or her native country to perform poorly because

a. minimal needs for intellectual stimulation have not been met. b. optimal needs for intellectual stimulation have not been met. c. low levels of anxiety have risen to moderate levels. d. circadian rhythms have been disrupted.

A psychologist states that "Juan's abnormal behavior is likely due to a combination of biology and inadequate interpersonal skills.". The psychologist is ____

a. predicting the future symptoms of Juan b. giving Juan a psychodiagnosis c. offering an explanation for Juan's problem d. describing how to control Juan's symptoms