In her study of student athlete's achievement motivation, Katie administers a self-report achievement motivation scale before she starts a new motivation enhancement intervention. After the intervention, Katie again assesses students' achievement motivation. She set her alpha at p = .05, and reported that there were no significant findings in her study. Which statistical analysis was appropriate for Katie to use to determine if there were treatment differences in her study?
◦ ANOVA
◦ t test
◦ Spearman rho
◦ Pearson r