Research Terms/AP Psych A

a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution.

• Mean

• Central Tendency

• Mode

• Z-Score

a study in which neither the participants nor the experimenters know who is receiving a particular treatment

• Control Group

• Variable

• Double Blind

• Research Design

the value that appears most frequently in a data set

• Central Tendency

• Mode

• Mean

• Variable

the collection of information from a sample of individuals through their responses to questions

• Random Sample

• Survey

• Sampling

• Validity

a measure of how dispersed the data is in relation to the mean

• Central Tendency

• Dependent Variable

• Independent Variable

• Standard Deviation

the selection of a subset of the population of interest in a research study

• Survey

• Sampling

• Standard Deviation

• Z-Score

how well the results among the study participants represent true findings among similar individuals outside the study

• Research Design

• Double Blind

• Experiment

• Validity

how consistently a method measures something

• Validity

• Reliability

• Variable

• Z-Score

the variable that changes as a result of the independent variable manipulation

• Variable

• Dependent Variable

• Independent Variable

• Experiment

a statistical measurement that tells you how far away from the mean (or average) your datum lies in a normally distributed sample

• Control Group

• Research Design

• Experiment

• Z-Score