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A researcher was interested in determining whether a six-week low- or high-intensity exercise-training program was best at reducing blood cholesterol concentrations in middle-aged men. Both
- A researcher was interested in determining whether a six-week low- or high-intensity exercise-training program was best at reducing blood cholesterol concentrations in middle-aged men. Both exercise programs were designed so that the same number of calories was expended in the low- and high-intensity groups. As such, the duration of exercise differed between groups. The researcher expected that any reduction in cholesterol concentration elicited by the interventions would also depend on the participant's initial cholesterol concentration. As such, the researcher wanted to use pre-intervention cholesterol concentration as a covariate when comparing the post-intervention cholesterol concentrations between the interventions and a control group. Therefore, the researcher ran a one-way ANCOVA with: (a) post-intervention cholesterol concentration (post) as the dependent variable; (b) the control and two intervention groups as levels of the independent variable,group; and (c) the pre-intervention cholesterol concentrations as the covariate,pre. Using the table below, please respond to the following item:
Given our discussions about effect size in class, please explain why the value of R2, provided as a footnote in the table below, the same value as the value of Partial Eta Squared in the table below?
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