Error variability is the amount of variation in DV scores due to which three factors?
A) variance, standard deviation, and the mean
B) non-random assignment, random assignment, and mixed assignment
C) placebo effects, measurement errors, and the IV
D) individual differences, measurement errors, and extraneous variables
Question 2
In the regression equation, y = .78 + .67x, .67 is
a. the criterion variable
b. the correlation
c. the regression constant
d. the regression coefficient
e. the predictor variable
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