Question: Question 1. When would a researcher use a One-Way ANOVA instead of a t-test? Question 2. To test the effectiveness of different treatment programs for

Question 1.

When would a researcher use a One-Way ANOVA instead of a t-test?

Question 2.

To test the effectiveness of different treatment programs for increasing adolescent self-esteem, a researcher assigned 12th grade adolescents to receive either a self-coaching program, a self-coaching plus a peer-coaching program, or a control condition where adolescents had an extra study hall. After implementing the programs, the researcher collected self-esteem data on all the adolescents in the study. The researcher hypothesized that adolescents who participated in the coaching programs would have higher self-esteem than adolescents who did not, and that adolescents who were in the self- plus peer-coaching group would have higher self-esteem than adolescents in just the self-coaching group.

Conduct an ANOVA to compare the self-esteem (self_esteem) means among the research groups (group) described above. Be sure to include a bar graph and Bonferonni post-hoc analysis. Copy and paste the output below.

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