One of the research methods used to help determine the typical course and progression of a disorder like schizophrenia is a ____________ study.

Mary's parents are concerned about her screaming. If the loudness of Mary's screams is what they are interested in, this would be an example of:

a. latency b. frequency c. intensity d. duration

Marlon, an older adult, would like to extend his longevity. According to your text, Marlon should not ____.?

a. ?restrict his caloric intake b. ?get a pet c. ?live independently d. ?be unwilling to try new things