Run each criterion of the pretest checklist (normality, homogeneity of variance, and n) and discuss your findings.
You want to find out if music enhances problem solving. Subjects will be recruited and randomly assigned to one of four groups: Those in Group 1 will serve as the control group and will be given a standard 100-piece jigsaw puzzle to solve in a quiet room. Participants in Group 2 will be given the … Read more