Psychology Quiz

When Mr. Adams calculated his students' algebra test scores, he noticed that two students had extremely low scores. Which measure of central tendency is affected most by the scores of these two students?

• mean

• standard deviation

• mode

• median

• range

Surveys indicate that people are much less likely to support “welfare” than “aid to the needy.” These somewhat paradoxical survey results best illustrate the importance of

• random sampling.

• wording effects.

• the placebo effect.

• naturalistic observation.

• hindsight bias.

In order to study the effects of noise on worker productivity, researchers have one group of subjects work in a noisy room and a second group work in a quiet room. To ensure that any differences in the productivity of the two groups actually result from the different noise levels to which the groups are exposed, the researchers would use:

• random assignment

• the case study

• correlational measurement

• naturalistic observation

• replication

A researcher interested in investigating the attitudes or opinions of a large sample of people is most likely to use which research method?

• survey

• correlation

• experiment

The difference between the highest and lowest scores in a distribution is the:

• range

• standard deviation

• correlation coefficient

• median

• mean

Psychological theories:

• generate hypotheses

• organize scientific observations

• explain observed facts

• do all of the above

The belief that weather conditions signal the onset of arthritis pain best illustrates:

• an illusory correlation

• operational definition

• the hindsight bias

• overconfidence

• random sampling

Correlational research is most useful for purposes of

• explanation.

• prediction.

• control.

• replication.

• experimentation.

If psychologists discovered that wealthy people are less satisfied with their marriages than poor people are, this would indicate that wealth and marital satisfaction are

• causally related.

• negatively correlated.

• independent variables.

• dependent variables.

• positively correlated.

According to Emily's grandfather, Adolf Hitler's obvious emotional instability made it clear from the beginning days of his international conflicts that Germany would inevitably lose World War II. The grandfather's claim best illustrates

• the hindsight bias.

• the confirmation bias.

• the overconfidence effect.

• the availability heuristic.

• the anchoring effect.