Research suggests that as physical activity and exercise level increases, one's self-report of ...

Research suggests that as physical activity and exercise level increases, one's self-report of depressive symptoms decreases. This is an example of a(n)
 
  a) negative correlation
 b) positive correlation.
 c) archival data study.
 d) reactivity effect.

Question 2

To study the serial position effect, a researcher shows subjects a list of nouns one at a time and then asks them to recall the nouns from the list after time delays of varying length.
 
  If there is another activity required during a 10-second delay between presentation and recall, which nouns should be recalled the most often?
   a) Those at both the beginning and end of the lis
 b) Those in the middle of the list
 c) Those at the beginning of the list
 d) Those at the end of the list

Question 3

A well-designed research study with only one independent variable is ________ preferable to a poorly designed study with multiple independent variables.
 
  a) vastl
 b) somewhat
 c) equally
 d) not

Question 4

Written, objective scoring instructions established prior to conducting the study helps to control for
 
  a) experimenter expectancies
 b) experimenter characteristics.
 c) demand characteristics.
 d) participant expectancies.