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Correlational and Survey Research: I

1. Correlational research-- some historical remarks

a. Robert Sessions Woodworth and the “Columbia bible” (1938)

b. Lee Cronbach and the “The Two Disciplines of Scientific Psychology” (1957)

c. Sir Francis Galton’s “studies of genius”


2. Correlation – the basics

a. the correlation coefficient (r)

b. scatterplots

c. assuming linearity

d. restricting the data range


3. Interpreting correlations: CORRELATION IS NOT CAUSATION

a. illusory correlations

b. third variables

4. Path analysis

a. mediator variables

b. moderator variables