What is an outlier?
A) A set of data outside the data file.
B) A single score (e.g., participant response) that is very different from others.
C) A score derived from a participant who has lied.
D) A variable that cannot be quantified.

Question

Quizplus · Accepted Answer

An outlier is a single score that is very different from the other scores in a data set. It can be either unusually high or unusually low and is often a result of measurement error or some other kind of anomalous event.

What Is an Outlier