A nutritionist wants to determine if exercise combined with a low carbohydrate diet is more effective than a low carbohy

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A nutritionist wants to determine if exercise combined with a
low carbohydrate diet is more effective than a low carbohydrate
diet alone in helping women return to their normal body weight
after giving birth. The nutritionist randomly selects
75 postpartum women and measures their weight. She then
randomly assigns 25 women to follow a low carbohydrate diet only,
25 women to follow the low carbohydrate diet with daily exercise,
and 25 women to a control group, now special diet or
exercise. After two months, the weights of all the
women will be measured again.
5. What is the explanatory variable in this experimental
research study?
Question 5 options:
Length of time needed to lose weight after giving birth
Method used to lose weight after giving birth
Weight loss after two months of treatment
Amount of time women were in labor
6. What is the response variable in this experimental research
study?
Question 6 options:
Weight loss after two months of treatment
Length of time needed to lose weight after giving birth
Method used to lose weight after giving birth
Amount of time women were in labor
7. This experimental research study involves blinding.
Question 7 options:
8. Did the researcher use a control group?
Question 8 options:
No
Yes
9. How many treatment groups did the researcher use?
Question 9 options:
2
4
0
3