Research Designs in Psychology

An experiment in psychology is:

• a method to observe and describe behavior

• a method to predict future behavior

• a method to test hypotheses and establish cause-and-effect relationships

• a method to analyze historical data

What is manipulated by the researcher in an experiment?

• Independent variable

• Dependent variable

• Control variable

• Extraneous variable

Fill in the blank: In an experiment, the conditions are carefully controlled, this allows the experimenter to determine whether a ______ relationship exists between the variables.

• cause-and-effect

• random

• correlational

• independent

Fill in the blank: An _______ variable is deliberately manipulated or changed by the researcher to determine its effect on another variable.

• Independent

• Dependent

• Controlled

• Extraneous

Fill in the blank: A _______ variable is the variable that is measured to see the impact of changing the independent variable.

• Dependent

• Independent

• Controlled

• Extraneous

What are controlled variables in an experiment?

• Variables that are changed in an experiment

• Variables that are measured in an experiment

• Variables that are kept constant in an experiment

• Variables that are not used in an experiment

What is the characteristic of an Independent measures design?

• Participants are exposed to all conditions of the experiment.

• Participants are exposed to only one condition of the experiment.

• Participants are paired with another participant sharing similar characteristics.

What is the characteristic of a Repeated measures design?

• Participants are exposed to all conditions of the experiment.

• Participants are exposed to only one condition of the experiment.

• Participants are paired with another participant sharing similar characteristics.

What is the characteristic of a Matched pairs design?

• Participants are exposed to all conditions of the experiment.

• Participants are exposed to only one condition of the experiment.

• Participants are paired with another participant sharing similar characteristics, but each is exposed to only one condition of the experiment.

What does the independent measures design use?

• One group of participants

• Two or more separate groups of participants

• Three groups of participants

• No groups of participants