The r between a set of tests scored by different scorers defines

Sleep apnea is a disorder in which:

a. a person suddenly falls asleep without warning during the day. b. a person has difficulty waking from sleep in the morning. c. a person periodically stops breathing during sleep. d. a person experiences bursts of aggressive behavior during sleep.

While on a visit to a large city, you observe

several billboards in which a series of lights seems to move. Which perspective in psychology would most likely help you understand this phenomenon? a) Gestalt b) behavioral c) humanistic d) psychodynamic