The practice of giving students course credit for participation ...

[ishan]

The practice of giving students course credit for participation in psychological research is considered ethically acceptable when
 
  a. the students sign a statement of informed consent.
  b. no deception is used in the research.
  c. the research involves minimal risk of harm to the participants.
  d. the students are free to refuse to participate or to withdraw at any time without any negative consequences.

Question 2

Imagine I conducted the following experiment: I used gender as a nonmanipulated independent variable and measured performance in my class. I measured performance by ranking everyone in the class, giving the person with the highest grade a 1, the person with the 2nd highest grade a 2, and so forth. Which statistic would I use to determine any differences in performance between these two groups?
 
  What will be an ideal response?

[dawsa925]

Answer to Question 1

D

Answer to Question 2

Because the data are ordinal (ranked) you would use a Wilcoxon test. Furthermore, because the nonmanipulated independent variable is between-subjects (gender), the exact test would be the Wilcoxon Rank-Sum Test.

[ishan]

Excellent

[ghepp]

Wow, this really help