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.
-8) In the study described above:
A) The general knowledge information variable and the IQ test information variable both have two levels
B) The general knowledge information variable and the IQ test information variable both have three levels
C) The general knowledge information has three levels and the IQ test information variable is a repeated measure
D) The general knowledge information variable has three levels and the two tests a week apart are a repeated measure

Question

Quizplus · Accepted Answer

The general knowledge information variable has three levels (failed, did well, no information), and the IQ estimations taken just after the general knowledge test and again a week later represent a repeated measure, as the same participants are tested twice under the same conditions.

Participants Are Asked to Rate Their Own IQ