AP Psychology- 1. Research Methods

Research strategy i/w neither subjects nor experimenters know which condition subjects are in

The group in an experiment that is exposed to manipulation of the independent variable

A link or association between variables such that one can be predicted from the other

A measure of variability in data

Statistics helpful in organizing and summarizing (but not interpreting) data

A condition or event that an experimenter manipulates in order to observe its impact

Judgment inferred from statistics that probability of observed findings occurring b/chance= low

The statistic that indicates the degree and direction of relationship between variables

The tendency to answer questions about oneself in a socially approved manner

Occurs when an extraneous variable makes it difficult to sort out the effects of the IV

Research method in which IVs are manipulated and which permits causal interpretation

Descriptive statistic & measure of central tendency; exact halfway point of data distribution

The arithmetic average

A tentative statement about the expected relationship between two or three variables

Effects that occur when subjects experience change due to expectations (or to "fake" treatment)

Distribution of subjects in experiment i/w each has equal chance of being assigned to any group

The spread or dispersion of data, including the extent to which scores vary from the mean

A larger group from which a sample is drawn and to which the researcher wishes to generalize

The variable that results from the manipulation in an experiment

The group in an experiment that is not exposed to manipulation of the independent variable

Exists when a sample is not representative of the population from which it was drawn

Precisely defines ea. variable in study in terms of operations needed to produce/measure them

The score that occurs most frequently

An in-depth, generally subjective, investigation of an individual subject

Any variables other than the IVs that seem likely to influence the DV in an experiment