Counterbalancing the order of treatments in a repeated measures ...

[beccaep]

Counterbalancing the order of treatments in a repeated measures factorial experiment means that the treatments _____.
 
  a. are presented all possible orders to every participant in the experimental group
  b. are presented in ascending order to all participants
  c. are presented in different orders to different participants
  d. are presented in descending order to all participants

Question 2

In your textbook, the author presented an example from mystery novels in which an evil-doer becomes immune to the effects of a poison by taking ever-increasing doses until s/he is immune to its effects. This phenomenon was likened to which of the following experimental effects?
 
  a. testing c. history
  b. multiple treatment interference d. external validity

[ynlevi]

Answer to Question 1

C
Presenting the treatments in different orders to different participants neutralizes carryover effects in within subject factorial experiments.

Answer to Question 2

B
Being exposed to early, low levels of the poison affects the evil-doer's later response to the poison, and is, therefore similar to multiple treatment interference effects.

[beccaep]

Thanks for the timely response, appreciate it

[cam1229]

Excellent