A researcher wanted to see the effects of different learning strategies. A control group simply read the book Discovering Statistics (book), a second group read the book and completed the 'end of chapter exercises' (book and exercises), and a third group read the book, did the end of chapter examples and also completed the web materials (all activities). The researcher predicted that the all activities and book and exercises groups would perform better than the book group on a subsequent test, but that the book and exercises group would do worse than the all activities group. Which coding scheme would test these hypotheses in a set of planned comparisons?

Question

Quizplus · Accepted Answer

The coding scheme that would test the specific hypotheses in planned comparisons would be one that compares the book group to both the book and exercises group and the all activities group, as well as a comparison between the book and exercises group and the all activities group. Choice B offers these three specific comparisons needed to test the researcher's hypotheses.

A Researcher Wanted to See the Effects of Different Learning