PSYC3980 FInal

Which of the following describes an experiment?

• the manipulated condition

• manipulating at least one variable and measured others

• outcome variable, measured.

How many IV and DV must an experiment have?

Which describes covariance?

• linear relationship between two variables

• principle establishing cause-effect relationships between two variables.

Which describes temporal precedence?

• linear relationship between two variables

• principle establishing cause-effect relationships between two variables.

The cause variable precedes the effect variable.

• True

• False

What's the difference between the confound and design confound?

• There is no difference between the two

• one describes an alternative explanation for experiment, the other is an experimenter's mistake in designing the IV.

• one is just random or haphazard

What is an independent groups design?

• each participant is presented with all levels of IV

• separate groups of participants are placed into different levels of IV

What is a within-groups design?

• Each participant is presented with all levels of IV

• separate groups of participants are placed into different levels of IV

Posttest-Only Design:

• The DV is measured/tested once after the IV

• The DV is measured before and after IV

• Participants measure on DV more than once

Pretest/Posttest Design:

• DV is measured only once, after IV

• DV is measured before and after the IV

• DV measured more than once, after exposure to each level of the IV