Question

Questions 1-6. For each of the following research questions, indicate

which of the following experimental designs would best be used to test the
question: completely randomized (CR), repeated measures (MR),
completely randomized factorial (CRF), split-plot factorial (SPF), or
ANCOVA.
What are the effects of type of breakfast (high protein, high carbohydrate,
or control) and time of eating breakfast (before morning workout or after
morning workout) on body mass index? Thirty-six participants were
randomly assigned to one of the breakfast groups and one of the time
groups, with six participants in each breakfast x time combination.
CR
RM
CRF
SPF
O ANCOVA

Answer 1

The best experimental design for the given scenario with two factors - type of breakfast and time of eating breakfast - affecting body mass index, and with participants randomly assigned to groups is a completely randomized factorial design (CRF).

Step-by-step explanation:

To determine which experimental design is most appropriate for studying the effects of type of breakfast and time of eating breakfast on body mass index, we need to analyze the setup of the experiment.

In this case, we have two factors: type of breakfast and time of eating breakfast, with the participants being randomly assigned to one of the groups formed by the combination of these two factors. Each participant is in only one group and does not experience the other groups' conditions.

Since we have a factorial design where each participant is in only one group, the best fit would be a completely randomized factorial design (CRF).