A sports researcher wanted to test and compare the impact of three different energy drinks as a means to examine to what extent energy drinks consumed during a workout increases workout rates. He randomly selected 36 gym goers and then randomly divided this group into three subgroups: a 'Placebo' group who drank water; a 'Caffeine' group who took a caffeine-rich energy drink; and a 'Sugar' group who took a sugar-rich energy drink. The study involved the groups drinking their energy drink prior to a thirty-minute workout. At the end or their workouts, their workout rates were recorded. What sort of research design is this?
A)Repeated-measures factorial design.
B)Independent factorial design.
C)ANOVA.
D)Multiple linear regression.

Question

Quizplus · Accepted Answer

This is an independent factorial design because the groups were randomly divided and each group received a different intervention (i.e. placebo, caffeine, or sugar). There is no repeated measure as the groups only received the intervention once. ANOVA or multiple linear regression could be used for statistical analysis, but they are not the research design itself.

A Sports Researcher Wanted to Test and Compare the Impact