Chapter 17, Problem 18P

18. A recent study indicate that people tend to select video game avatars with characteristics similar to those of their creators (Be1is1e & Bodur, 2010). Participant who had created avatar 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 personal­

ity characteristic considered was intro,verted/extroverted. The following frequency distribution of personalities for participants and the avatars they created.

Participant personality
	lntroverted	Extroverted
Introverted	22	23	45
Avatar
Extroverted	16	39	55
Avatar
38	62

a.. Is there a significant relationship between the per ­

sonalities of the participants and the personalitiesof their avatars? Test with a = .05 .

b. Compute the phi-coefficient to measure the size of the effect.