AP Psychology Research Terms

Front

Independent Variable

Back

Variable manipulated by the researcher

Front

Dependent Variable

Back

Variable measured in the experiment

Front

Control Group

Back

Group not exposed to the treatment

Front

Experimental Group

Back

Group exposed to the treatment

Front

Random Assignment

Back

Assigning participants to groups by chance

Front

Double-Blind Procedure

Back

Both participants and researchers unaware of group assignments

Front

Placebo Effect

Back

Improvement due to the belief in treatment

Front

Correlation Coefficient

Back

Statistical measure of relationship between variables

Front

Positive Correlation

Back

Variables increase or decrease together

Front

Negative Correlation

Back

One variable increases as the other decreases