chapter 12 vocab terms

Question 1

interaction effect

Answer 1

A result from a factorial design, in which the difference in the levels
of one independent variable changes, depending on the level of the
other independent variable; a difference in differences. Also called
interaction

Question 2

factorial design

Answer 2

A study in which there are two or more independent variables, or
factors

Question 3

cell

Answer 3

A condition in an experiment; in a simple experiment, a cell can
represent the level of one independent variable; in a factorial design, a
cell represents one of the possible combinations of two independent
variables.

Question 4

participant variable

Answer 4

A variable such as age, gender, or ethnicity whose levels are selected
(i.e., measured), not manipulated.

Question 5

main effect

Answer 5

In a factorial design, the overall effect of one independent variable on
the dependent variable, averaging over the levels of the other
independent variable.

Question 6

marginal means

Answer 6

In a factorial design, the arithmetic means for each level of an
independent variable, averaging over the levels of another
independent variable.