Chapter 11, Problem 2P

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Chapter
Section

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

# Participants enter a research study with unique characteristics that produce different scores from one person to another. For an independent-measures study, these individual differences can cause problems. Identify the problems and briefly explain how they are eliminated or reduced with a repeated-measures study.

To determine

The problems in independent-measures study and their solutions.

Explanation

Given info:

Independent-measures study is used in the study.

Justification:

Since, participants produce different scores from one person to another and the independent-measures study is used. The first problem is the large differences in scores of participants because of grouping. Since, groups are independent so, there are chances that 2 groups are formed in such a way that they differ a lot in some characteristics. So, there can be large differences in participants score by grouping only.

Second problem can be the large variance, since; there exist individual differences of score due to which overall variance increases...

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