American artist, Frederick Edwin Church, painted the entrance to Petra, a ancient city in Jordan, in 1874. We, the viewer, knows that the famous Treasury is beyond the dark canyon thanks to the depth cue of ______________.

What is PTSD?

What will be an ideal response?

When a child was an infant, she received a lot of attention because of an illness. Now, although she is healthy, she still demands attention. When she is put to bed at night, she cries until her parents come and hold her

A behavioral psychologist's suggestion that her parents should ignore her crying is an example of a. placebo therapy. b. systematic desensitization. c. an extinction strategy. d. aversion therapy.