Correlational research differs from experimental research in that:
A. there is no manipulation of variables.
B. there is no concern regarding internal validity.
C. random sampling is not used.
D. researcher bias is not a problem.
Answer: A
You might also like to view...
Causal-comparative research is also called ex post facto research because the investigator
a. studies relationships after they have happened. b. studies only facts. c. studies whole environments rather than facts. d. actively manipulates the independent variable and studies its effect on the dependent variable. e. actively manipulates the dependent variable and studies its effect on the independent variable.
The recording method most open to observer bias is:
A. Checklist B. Event sampling C. Running record D. Rating scale
In Lepper and Greene's study on the hidden costs of reward, which group should spend the least amount of time drawing after the treatment according to the behaviorist interpretation of the law of effect?
a. unexpected reward b. expected reward c. no reward d. all should spend about the same amount of time
A type II error means that a researcher has ______.
a. correctly concluded that an effect does not exist b. correctly concluded that an effect exists c. falsely concluded that an effect does not exist d. falsely concluded that an effect exists