Answer Happy

aWhich of the following would increase the power of a study?
Increasing sample size
Adding a placebo for the control group
Measuring possible confounding variables
Increasing the number of researchers involved in the study
b
What type of research study can identify causation, rather than
simply correlations?
Group of answer choices
Cohort Study
Randomized Control Trial
Case Control Study
Retrospective Study
C
Blaming an individual for obesity fails to take into account
which of the following?
Group of answer choices
Food environment
All of the above
Marketing
Economy