Mario conducts a study on what Caucasians perceive as physically attractive, then conducts the same study with African Americans, and then with Asian Americans as the sample. Mario is using ________ to determine the external validity of his findings.

A researcher is designing an experiment, and ensures that each participant is equally likely to be in one condition as another. He does not assign them based on any characteristics such as gender, ethnicity, or personality. This researcher is ________ participants.

Experimenters who value external validity primarily want their findings to generalize across ________ and ________.

When you conduct your own research, what size p-value indicates that your research has been successful?

How did Latané and Darley (1968) vary the number of bystanders in their experimental study of the effects of the number of witnesses exposed to an emergency?

What have archival analyses of sexually explicit materials revealed about pornography usage?

Which of the following best defines the term “sample”?

There is invariably a trade-off between ________ and ________ in social psychology experiments.

A researcher is interested in the effects of self-esteem on people’s choice of romantic partner. She asks her study participants to complete a measure of self-esteem and to bring in separate photos of themselves and their significant others. She then has these photos rated for attractiveness by a panel of independent judges, and relates the relative attractiveness of a person’s significant other to the person’s self-esteem. The study just described is a(n)

Which of the following pairs of variables are most likely to be negatively correlated?