A researcher wanted to see the effects of different learning strategies. A contr

Question

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 endofchapter exercises (book and exercises), and a third group read the book, did the endofchapter 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 be worse than the all activities group. Provide a table with the weights you would assign each variable for orthogonal planned comparisons.

Explanation / Answer

here we will take into consideration with book and book exercises with all there activities

with the contrast 1 and contrast 2 limited to first 100 cases

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