AP Psychology Research review vocab

Front

The condition that exists when the probability that the findings are not due to chance

Back

statistical significance

Front

each time a study is repeated, the results are consistent.

Back

reliability

Front

Factors that cause differences between the experimental group and control group other than the independent variable.

Back

confounding variables

Front

The factor the researcher manipulates in a controlled experiment

Back

independent variable

Front

The subgroup of the population that participates in the study

Back

sample

Front

A phenomenon that occurs when a researcher's expectations or preferences about the outcome of a study influence the results.

Back

experimenter bias

Front

The subgroup of the sample that receives the independent variable.

Back

experimental group

Front

Division of the sample into groups so that every individual has an equal chance of being put in any group or condition.

Back

random assignment

Front

A psychological or physical treatment given to the control group that resembles the treatment given to the experimental group, but that contains no active ingredient.

Back

placebo

Front

A description of the specific procedure used to determine the presence of a variable.  Created so that the experiment can be replicated by others.

Back

operational definition