A Researcher Selects a Sample of 24 College Students and Has

Multiple Choice

A researcher selects a sample of 24 college students and has them rate their liking for two advertisements aimed at improving the image of the college.The researcher finds that liking ratings significantly differed,t = 2.900.Use $\omega$ ² to compute the proportion of variance for this result.

A) $\omega$ ² = .30
B) $\omega$ ² = .24
C) $\omega$ ² = .21
D) there is not enough information to answer this question