What is one of the primary advantages of a pretest-posttest ...

[notis]

What is one of the primary advantages of a pretest-posttest nonequivalent control group design, in comparison to other nonequivalent group designs?
 
  a. Posttest scores can help reduce threats from history effects.
  b. Posttest scores can eliminate threats from history effects.
  c. Pretest scores can help reduce the threat of assignment bias.
  d. Pretest scores can eliminate the threat of assignment bias.

Question 2

If potential participants live in a widely dispersed area, a(n) ____ is preferable.
 
  a. personal interview
  b. e-mail questionnaire
  c. group questionnaire
  d. drop-off survey

[Pamela.irrgang@yahoo.com]

Answer to Question 1

c

Answer to Question 2

b

[notis]

Great answer, keep it coming

[FergA]

Thanks for the timely response, appreciate it