The GSS asks respondents to rate various groups using the "feeling thermometer" on a scale of 0 (most unfavorable) to 100 (most favorable). We plan to study how the mean compares for rating liberals...

The GSS asks respondents to rate various groups using the "feeling thermometer" on a scale of 0 (most unfavorable) to 100 (most favorable). We plan to study how the mean compares for rating liberals and rating conservatives, for ratings in 2006 and ratings in 1986. Explain why a twoway ANOVA using time (1986, 2006) and group rated (Liberal, Conservative) as factors would require methods for repeated measures. Identify the within-subjects and between-subjects factors.