Which of the following research methods are widely used by psychologists?

• Precognition and the Ganzfield procedure
• Surveys and experiments
• Water-float tests and lie detector tests
• Introspection and reinforcement

The average of all scores or data is referred to as the

• mean
• median
• mode
• statistical total

This figure is the absolute physical middle point in a group of scores.

• mean
• mode
• median
• standard deviation

The figure that occurs most often in a set of scores is known as the

• mean
• mode
• median
• bell curve

In an experiment studying the effect of temperature on aggression, the temperature is the

• Dependent variable.
• Independent variable.
• Control group.
• Experimental group.

In an experiment, the control group is the group that

• Is observed in a laboratory.
• is observed in a natural setting
• Is not told whether they are receiving the treatment.
• Does not receive the treatment.

One disadvantage of a longitudinal case-study is that

• It is too expensive.
• It takes too long.
• Researchers may guide the subject to answer questions in a certain way.
• It does not give specific examples

One of the best methods for getting information from a large number of people is

• A case study.
• The longitudinal method.
• The cross-sectional method.
• A survey.

One of the limits of correlation is that

• It does not show how two factors are related.
• It does not show cause and effect.
• Results from one person do not always apply to all people.
• Different participants could yield different results.

An example of naturalistic observation is

• The “Skinner Box”.
• The placebo effect.
• Observing a mouse in a field.
• Observing a mouse in a maze.