Participants are asked to rate their own IQ. Before the estimations one group is told they have just failed a general knowledge test, one group is told they did well and a third group is given no information. Differences between estimates of each group are investigated and data are treated as satisfying parametric assumptions.
In a further IQ estimation study the same conditions are used but half of each group is given detailed information about what is contained in an IQ test while the other half is not. Participants are tested just after the general knowledge test information is given and again a week later.
-7) An appropriate analysis would be:
A) 2 x 2 x 3 mixed ANOVA
B) 2 x 2 x 3 repeated measures ANOVA
C) 2 x 3 x 3 between groups ANOVA
D) 2 x 3 mixed ANOVA

Question

Quizplus · Accepted Answer

The appropriate analysis for this study design, which involves two between-subjects factors (general knowledge test feedback and information about IQ tests) and one within-subjects factor (time of testing: just after feedback vs. a week later), is a 2 x 2 x 3 mixed ANOVA. This analysis allows for the examination of the interaction between the between-subjects and within-subjects factors.

Participants Are Asked to Rate Their Own IQ