Author Question: Professor Moriarty is conducting a between-subjects experiment where he has two different groups ... (Read 40 times)

EAugust · **on:** Jun 20, 2018

Professor Moriarty is conducting a between-subjects experiment where he has two different groups completing an eye-hand coordination task while being timed.

He finds that, for whatever reason, six out of twenty subjects in the experimental group have decided to drop out of the study, while only one out of twenty subjects has dropped out of the control group. It appears that Professor Moriarty's experiment is experiencing a problem of

a. repeated measures designs.
b. differential attrition.
c. independent groups designs.
d. inflated alpha levels.

Question 2

If a researcher knows how much variability a particular factor adds to the data, and decides to remove from the data that same variability, this researcher is making use of the analytical technique known as

a. statistical control.
b. double-blind control.
c. historical control.
d. selectivity control.