Your roommate has seemed more negative than usual and is lying around the apartment quite a bit. You think she might be mildly depressed. This is an assessment of her __________

Which of the following approaches is considered to be convenient for a researcher but not very accurate?

a. sampling behavior with tasks b. structured observation c. self-reports d. representative sampling

A positive correlation between two factors means _____

a) the value of one increases as the other decreases. b) the value of each moves in the same direction. c) the value of both only increases. d) there is no relationship between the two variables.