You conduct an experiment on the effect of low and high anxiety on test performance.The results turn out nonsignificant.Now you don't know if anxiety truly has no effect on performance or whether you had faulty procedures.How could this have been avoided? You could have conducted a(n)
A) ethics evaluation.
B) manipulation check.
C) factorial study using better controls.
D) double-blind study.

Question

Quizplus · Accepted Answer

By conducting a manipulation check, you can ensure that the independent variable (anxiety levels) was actually manipulated and had the intended effect on participants. This helps to rule out faulty procedures as a potential cause for nonsignificant results. Conducting a factorial study with better controls or a double-blind study can also help to improve the validity of the results, but a manipulation check is the most directly relevant to the issue of potential procedural issues. An ethics evaluation would not directly impact the validity of the results in this case.

You Conduct an Experiment on the Effect of Low and High