If an experiment had four conditions (A, B, C, and D) and each participant is to be measured under each condition, intragroup incomplete counterbalancing might be the best method to use. Which of the following describes this method?

I: ABDC; Group
II: BCAD; Group
III: CDBA; Group
IV: DACB Group

I: ABCD; Group
II: BCDA ;Group
III: CDAB; Group
IV: DABC ABCDDCBA ABCD

Respuesta :

Answer:

I: ABDC; Group

II: BCAD; Group

III: CDBA; Group

IV: DACB Group

Explanation:

Incomplete counterbalancing is an experimental design that controls for order effects by using a limited number of possible sequence of treatments administered in such. Way that each treatment appears equally often in each position. As seen in the answer chosen above, experiment A,B,C and D all appeared in the four available positions.