Counterbalanced designs a. give the same treatments to all ...

[geodog55]

Counterbalanced designs
 
  a. give the same treatments to all subjects.
  b. may involve many groups and treatments.
  c. rotate intact groups.
  d. a and c
  e. All of these are true.

Question 2

If the reliability coefficient for a set of test scores is .90, we know that
 
  a. 90  of the variance is true variance; 10  is unknown.
  b. 90  of the variance is true variance; 10  is error.
  c. 90  of the variance is true variance; 10  is reliable.
  d. 81  of the variance is true variance; 19  is error.
  e. 81  of the variance is true variance; 19  is unknown.

[Jadwiga9]

Answer to Question 1

E

Answer to Question 2

B