The first step in the ABAB design is a. using random ...

[segrsyd]

The first step in the ABAB design is
 
  a. using random assignment to place subjects in groups.
  b. selecting matched pairs for the study.
  c. administering a pretest to all subjects.
  d. measuring the behavior of interest before the treatment.

Question 2

Evidence based on test-criterion relationships may vary from time to time and place to place. Researchers attribute this lack of agreement in validity studies to the
 
  a. type of criterion used.
  b. type of test taker.
  c. way the predictor is measured.
  d. period of time involved.
  e. All of these are true.

[kardosa007]

Answer to Question 1

D

Answer to Question 2

E

[segrsyd]

TYSM

[samiel-sayed]

Thanks for the timely response, appreciate it