When is it acceptable for a researcher to dispense with obtaining ...

[nramada]

When is it acceptable for a researcher to dispense with obtaining the informed consent of research participants?
 
  a. Whenever there is no deception involved in the research
  b. Whenever the risk of harm to the participants is minimal, they participate voluntarily, and their confidentiality is ensured
  c. Whenever the participants are being paid for their participation
  d. Whenever the research has been approved by an IRB

Question 2

What are the assumptions of the 2 test?
 
  What will be an ideal response?

[randomguy133]

Answer to Question 1

B

Answer to Question 2

The assumptions of the 2 test are that the sample is random, the observations are independent, the data are nominal, and the number of observations in each cell should not be less than 5.

[nramada]

Great answer, keep it coming

[strudel15]

Excellent