Chapter 15, Problem 20P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

A recent study indicates that people tend to select video game avatars with characteristics similar to those of their creators (Bélisle & Onur, 2010). Participants who had created avatars for a virtual community game completed a questionnaire about their personalities. An independent group of viewers examined the avatars and recorded their impressions of the avatars. One personality characteristic considered was introverted/ extroverted. The following table shows frequency distribution of personalities for participants and the avatars they created.

- a. Is there a significant relationship between the personalities of the participants and the personalities of their avatars? Test with
*α =*05. - b. Compute the phi-coefficient to measure the size of the effect

**a.**

To determine

**To check:** Whether there is significant relationship between the personalities of the participants and the personalities of their avatars for the given question.

Explanation

**Given info:**

A sample of 100 students was involved in a study based on “the personalities for participants and their avatars”. Use

**Calculations:**

Step 1: Null Hypothesis and Alternate Hypothesis are:

Step 2: For the given sample, degrees of freedom equals:

With

Step 3:

The formula to calculate expected frequency is:

Substitute

For the category “introverted avatar”, the expected frequencies are:

**b.**

To determine

**To Find:** The value of phi-coefficient for the given question.

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