The following data are from an experiment comparing three different treatment conditions: a. If the experiment uses

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The following data are from an experiment comparing three different treatment conditions:

A. 1 2 N = 15 УX? — 354 5 %3D 1 2 6. 8. 8. T = 10 T = 20 T = 30 SS = 30 SS = 30 SS = 14 O2I 52

a. If the experiment uses an independent-measures design, can the researcher conclude that the treatments are significantly different? Test at the .05 level of significance.
b. If the experiment is done with a repeated-measures design, should the researcher conclude that the treatments are significantly different? Set alpha at .05 again.
c. Explain why the analyses in parts a and b lead to different conclusions.

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Statistics For The Behavioral Sciences

ISBN: 9781111830991

9th Edition

Authors: Frederick J Gravetter, Larry B. Wallnau

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