A psychologist is working with three types of aptitude tests that may be given to prospective management trainees. In deciding how to structure the testing process, an important issue is the possibility of interaction between test takers and test type. If there were no interaction, only one type of test would be needed.
Three tests of each type are given to members of each of four groups of subject type. These were distinguished by ratings of poor, fair, good, and excellent in preliminary interviews. The scores obtained are listed in the following table:
a. Set up the analysis of variance table.
b. Test the null hypothesis of no interaction between subject type and test type.

  • CreatedJuly 08, 2015
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