Chapter 13, Problem 3P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

A researcher conducts an experiment comparing three treatment conditions with *n* = 10 scores in each condition.

a. If the researcher uses an independent-measures design, how many individuals are needed for the study and what are the *df* values for the *F*-ratio?

b. If the researcher uses a repeated-measures design, how many individuals are needed for the study and what are the *df* values for the *F*-ratio?

**a.**

To determine

The numbers of individuals and *df* values for the *F*-ratio needed for the independent-measures design.

Explanation

**Given info:**

A researcher conducts an experiment comparing 3 treatment conditions with

**Calculation:**

Let *n* and *k* represent the numbers of participants in each treatment and total numbers of treatments respectively. Then,

In case of independent-measures design, participants in each treatment are different. Let, *N* represents total numbers of participants in the study, then,

**b.**

To determine

The number of individuals and *df* values for the *F*-ratio needed for the repeated-measures design.

Sect-13.2 P-1LCSect-13.2 P-1LCASect-13.2 P-2LCASect-13.2 P-3LCASect-13.2 P-1LCBSect-13.2 P-2LCBSect-13.3 P-1LCSect-13.3 P-2LCSect-13.3 P-1LCASect-13.3 P-2LCA

Sect-13.3 P-3LCACh-13 P-1PCh-13 P-2PCh-13 P-3PCh-13 P-4PCh-13 P-5PCh-13 P-6PCh-13 P-8PCh-13 P-9PCh-13 P-10PCh-13 P-11PCh-13 P-12PCh-13 P-13PCh-13 P-14PCh-13 P-15PCh-13 P-16PCh-13 P-17PCh-13 P-18PCh-13 P-19PCh-13 P-20PCh-13 P-21PCh-13 P-22PCh-13 P-23PCh-13 P-24PCh-13 P-25PCh-13 P-26PCh-13 P-1RECh-13 P-2RECh-13 P-3RECh-13 P-4RE

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