A matched groups design differs from a between subjects design in that in the matched group design,
a. participants are assigned randomly to conditions of the experiment.
b. participants are matched across groups on their scores on the dependent variable.
c. participants in each condition of the experiment are matched on one or more characteristics to reduce the variability between groups.
d. participants are tested in more than one condition of the experiment.
Question 2
The following data represent the means for each treatment condition in a two-factor experiment. What pattern of results is shown in the data? A1 A2 B1 M = 30 M = 20 B2 M = 40 M = 10
a. main effects for both factors and an interaction
b. main effects for both factors and no interaction
c. a main effect for factor A, no main effect for factor B, and no interaction
d. a main effect for factor A, no main effect for factor B, and no interaction
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