You propose a research project in which you randomize mentally ill kindergarten children to either ...

You propose a research project in which you randomize mentally ill kindergarten children to either receive a behavioral intervention, medication, or no treatment. Given the nature of your targeted sample, you must consider the issue of
 
  a) vulnerable populations
 b) the ethical use of animals in research.
 c) when you will provide the debriefing session.
 d) how to analyze your data.

Question 2

Mail surveys provide the advantage of increasing
 
  a) the size of the recruitment sample
 b) the accuracy of the targeted individual.
 c) standardization in how the survey is completed.
 d) the response rate.

Question 3

Fewer nuisance variables lead to _________ in the sample.
 
  a) more homogeneit
 b) less homogeneity
 c) more heterogeneity
 d) less power