A one-sample t test will be undefined (denominator = 0)when the same score is recorded for all participants in a study.

Question

Quizplus · Accepted Answer

If all participants have the same score, then there will be no variability in the data, and the denominator of the formula for the standard error of the mean will be 0. This will result in an undefined value for the t statistic and therefore a one-sample t test cannot be performed.

A One-Sample T Test Will Be Undefined (Denominator = 0)when