Unit 9 terms

Question 1

Factorial design

Answer 1

research design that involves all combinations of at least two values of two or more independent variables

Question 2

main effect

Answer 2

in a factorial experiment, the effect of one independent variable, averaged over all levels of another independent variable

Question 3

interaction effect

Answer 3

when the effect of one independent variable depends on the level of another indepen- dent variable

Question 4

mixed design

Answer 4

designs containing at least one variable that is pre- sented in a within-subjects fashion and one other variable that is presented in a between-subjects fashion

Question 5

three types of interactions in PSYC research

Answer 5

antagonistic, synergistic, and ceiling effect.

Question 6

Antagonistic

Answer 6

interaction in which the two independent variables tend to reverse each other’s effects

Question 7

Synergistic

Answer 7

interaction in which the two independent variables reinforce each other’s effects

Question 8

ceiling effect

Answer 8

interaction in which one variable has a smaller effect when paired with higher levels of a second variable