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Statistics Psy

confounding variable a variable (that we may or may not have measured) other than the predictor/independent variables in which we’re interested that potentially affects an outcome/dependent variable’. In other words, it’s a variable that is related to the outcome we are in
Systematic variation a variation in an experimental outcome that is due to the experimenters’ manipulation
Unsystematic variation the variation in outcome due to random (and often unknown) factors (e.g., change in the dependent variable brought about by something other than changes in the independent variable).
Unsystematic vs systematic variation The difference between these two types of variance is very important for statistical analysis because what we try to do with most statistical tests is to calculate the total amount of variance in our outcome variable and then figure out how much of it i
Created by: kaly