PSYCH 2300 Lecture Notes - Lecture 9: Multivariate Analysis, Spotify, Internal Validity
22 Mar 2018
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Test several variables" relationship w/ an outcome variable. Predictor variables = iv(s) - not always manipulated. Test correlation b/t 2 variables while controlling for other variables. Does correlation b/t a and b hold for all subgroups of a particular type? (b) Tells us strength and direction of relationship. When all other predictors are held to a constant value. You can"t call betas small , moderate , or large . But you can compare beta values to others within the same table. Ex) a beta of -0. 78 indicates the phone #s receieved decreases by 0. 78 standard deviations for every 1 standard deviation increase in kanye west quotes used, when controlling for ___ . Behavior problems decrease by ___ points for every minute of recess children have vs behavior problems decrease by __ standard deviations for each 1 standard deviation change in recess time . You cannot compare b values to other b values in the same table.
