Manipulation checks are particularly useful
a. when there is no significant relationship found between the independent and dependent variable.
b. when there are many dependent measures.
c. when there are many manipulations.
d. when there is confounding in the experiment.
Question 2
Which of the following best describes manipulation checks?
a. They are usually given after all of the dependent variables have been collected.
b. They help determine whether the manipulation has unwittingly caused differences on confounding variables.
c. They are always given before the dependent variables have been collected.
d. They are designed to influence responses on the dependent measure.