Your text identifies three unifying themes that relate to psychology as a field of study. Identify each of these themes and show how each theme might be relevant in investigating clinical depression

What will be an ideal response?

Psychology is empirical, theoretically diverse, and evolves in a sociohistorical context.

Answers to the remainder of this question will require students to come up with applications of these themes that go beyond the information in the text. Some points that might be covered include clearly defining depression and specifying the population to be observed and studied (empirical); looking for possible biological, social, and environmental causes of, or treatments for, depression (theoretically diverse); and changing perceptions of depression from a hidden disorder to one that has advertisements for treatments in magazines and on television (sociohistorical context).