Chapter 12, Problem 6P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

The following data summarize the results from an independent-measures study comparing three treatment conditions.

a. Use an ANOVA with

b. Calculate
^{2} to measure the effect size for this study.

c. Write a sentence demonstrating how a research report would present the results of the hypothesis test and the measure of effect size.

**a.**

To determine

Whether there are any significant differences among three treatment means.

Explanation

**Given info:**

The results from an independent-measures study comparing three treatment means.

Level of significance is

**Calculation:**

Let *k* represents the numbers of treatments. Then,

*Degrees of Freedom*

*Degrees of Freedom for*

Sum of squares between treatments is obtained as:

**b.**

To determine

The effect size
η 2 for the study.

**c.**

To determine

**To explain:** The results of the hypothesis test and the measure of effect size.

Sect-12.2 P-1LCSect-12.2 P-2LCSect-12.2 P-3LCSect-12.2 P-4LCSect-12.3 P-1LCSect-12.3 P-2LCSect-12.3 P-3LCSect-12.4 P-1LCSect-12.4 P-2LCSect-12.5 P-1LC

Sect-12.5 P-2LCSect-12.6 P-1LCSect-12.6 P-2LCSect-12.7 P-1LCSect-12.7 P-2LCCh-12 P-1PCh-12 P-2PCh-12 P-3PCh-12 P-4PCh-12 P-5PCh-12 P-6PCh-12 P-7PCh-12 P-8PCh-12 P-9PCh-12 P-10PCh-12 P-11PCh-12 P-12PCh-12 P-13PCh-12 P-14PCh-12 P-15PCh-12 P-16PCh-12 P-17PCh-12 P-18PCh-12 P-19PCh-12 P-20PCh-12 P-21PCh-12 P-22PCh-12 P-23PCh-12 P-24P

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