Within-subjects designs reduces error variance by A) ...

[tsand2]

Within-subjects designs reduces error variance by
 
  A) controlling conditions of measurement.
  B) randomization.
  C) eliminating individual differences.
  D) adding more participants.

Question 2

Control in experimentation refers to control of
 
  A) experimental variance.
  B) extraneous variance.
  C) error variance.
  D) All of the above

[ally]

Answer to Question 1

Answer: C

Answer to Question 2

Answer: D

[tsand2]

TYSM

[mcabuhat]

Thanks for the timely response, appreciate it