A swimming coach wants to test the effect of diet on swimmers’ stamina. He wants to...
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A swimming coach wants to test the effect of diet on swimmers’stamina. He wants to compare between diet A – sugar and fat richdiet, and diet B – low sugar and fat diet. The outcome variables isthe length of time swimmers can keep swimming after being on thediet for three days. (2 points)
a. Design a within-subject study to compare the two diets
b. Design a matched-subjects study to compare the two diets. Usethe swimmers’ BMI as the grouping variable.
A swimming coach wants to test the effect of diet on swimmers’stamina. He wants to compare between diet A – sugar and fat richdiet, and diet B – low sugar and fat diet. The outcome variables isthe length of time swimmers can keep swimming after being on thediet for three days. (2 points)
a. Design a within-subject study to compare the two diets
b. Design a matched-subjects study to compare the two diets. Usethe swimmers’ BMI as the grouping variable.
Answer & Explanation Solved by verified expert
a. for a within subject design the same group serves as the subjects for both the experiments. hence we randomly select agroup of swimmers and determine their swimming capacity before the treatment then we treat them on diet A and
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