________________________ are specialized cells involved in imitation.

Patients who suffer from double depression have which of the following patterns of symptoms?

a.) They have both bipolar disorder and unipolar depression at the same time. b.) They suffer from more than one episode of unipolar depression within a 12-month period. c.) They suffer from both bipolar 1 and bipolar 11 disorder at the same time d.) They suffer from dysthymic disorder, and this leads to a diagnosis of major depressive disorder.

Chi-square is a non-parametric statistic. What does it tell us?

a. If observed cell counts equal zero b. What percent of responses fit a specific cell c. If frequencies differ from what we would expect to find d. If two means differ