Handling a Nonsignificant Outcome Bama conducted an experiment on rats to study the effects of prior experience on hunger motivation.He measured "hunger" by measuring how many food pellets out of 20 a rat consumed in two minutes.However, all the rats ate almost all 20 pellets in every condition.Bama's study was threatened by
A)a ceiling effect.
B)a floor effect.
C)confounding.
D)Type 1 error.

Question

Quizplus · Accepted Answer

A ceiling effect occurs when the dependent variable (in this case, number of food pellets consumed) is already at its highest possible value, making it difficult to observe any differences between conditions. In Bama's study, all rats consumed almost all 20 pellets in every condition, indicating a ceiling effect that threatens the validity of his study.

Handling a Nonsignificant Outcome Bama Conducted an Experiment on Rats