Psych 2

Created by amandajeanne11 

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Population

The total group from which a sample is drawn

Frequency Distribution

Arranging data so you know how often a score occurs

Scatterplot

Graph that demonstrates the direction of the relationship between two variables

Random Sample

Equal chance of being represented

Stratified Sample

Representative of various subgroups of the population

Correlation

The relationship between two sets of data

Correlation Coefficient

A statistic that describes the direction and strength of the relationship between two sets of data

Normal Curve

A symmetrical bell-shaped curve

Descriptive Statistics

The listing and summarizing of data in a practical way

Survey

Sampling of data obtained through interviews and questionnaires

Standard Deviation

A measure of variability that describes an average distance of every score from the mean of the scores

Experimental Group

A group of participants to whom an independent variable is applied

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