Suppose you have gone to great lengths to determine which participants will perform the experiment at what time and in what group, but some participants just fail to show up for their appointments. What should you do?
A) nothing; conduct the experiment as planned, without their data
B) randomly select and assign new participants to take their place
C) estimate what their performance would have been based on how other members of their group performed and add it in to your results
D) to fill in the gaps in your groups, take the nearest willing volunteers

Question

Quizplus · Accepted Answer

Randomly selecting and assigning new participants to take the place of those who failed to show up is the best way to ensure that the experiment is still valid.

Suppose You Have Gone to Great Lengths to Determine Which