Week 7

Question 1

enhancing

Answer 1

moderating IV strengthens association between IV and DV

Question 2

buffering

Answer 2

moderating IV reduces association between IV and DV

Question 3

antagonistic

Answer 3

moderating IV flips direction of association between IV and DV

Question 4

interacting variable with itself is a sneaky way that we can

Answer 4

introduce some nonlinearity into linear regression models

Question 5

ANOVA assumptions

Answer 5

Continuous DV
one IV is continuous (if both are categorical, do factorial ANOVA)
independence of observations
no multicollinearity
not significant outliers

Question 6

homogeneity of variance

Answer 6

residual variance in the outcome that remains after predicting Y from X is the same for different values of M

Question 7

homogeneity of variance if M is dichotomous

Answer 7

category with smaller variance will have weaker slop
larger variance stronger slope, transform X or M