Which of the following procedures or techniques requires little ...

[TVarnum]

Which of the following procedures or techniques requires little or no active deception?
 
  A) the use of a cover story
  B) the use of a confederate
  C) the use of unobtrusive observations
  D) the use of a bogus pipeline

Question 2

Which of the following threats to validity CANNOT be corrected by simply adding a control group to a researcher's design?
 
  A) history
  B) regression toward the mean
  C) testing effects
  D) participant reaction bias

[IAPPLET]

Answer to Question 1

C

Answer to Question 2

D

[TVarnum]

Excellent

[kishoreddi]

Thanks for the timely response, appreciate it