In a nonrandomized control group, pretest-posttest design, the ...

[Mollykgkg]

In a nonrandomized control group, pretest-posttest design, the recommended procedure for analyzing test results is a(n)
 
  a. t-test of the difference between pretest and posttest means for both the experimental and the control group.
  b. four-way analysis of variance.
  c. analysis of covariance, in which the posttest means are compared using the pretest means as the covariate.
  d. analysis of variance of the mean pretest-posttest change for the experimental and control groups.

Question 2

A student has a score of 80 on a class test with a score reliability of .84 and a standard deviation of 10 . What is the band within which the student's true score is likely to fall? (Use the .95 confidence level).
 
  a. 70 and 90 c. 75 and 85
  b. 72 and 88 d. 76 and 84

[xMRAZ]

Answer to Question 1

C

Answer to Question 2

B

[Mollykgkg]

Excellent

[marict]

YES! Correct, THANKS for helping me on my review