In which statistical technique is the presence of outliers problematic?
A) ANCOVA
B) Multiple regression
C) Discriminant analysis
D) All of the above

Question

Quizplus · Accepted Answer

Outliers can significantly affect the results of ANCOVA, multiple regression, and discriminant analysis by skewing the data, affecting assumptions about normality, and influencing the estimation of parameters, making all these techniques sensitive to the presence of outliers.

In Which Statistical Technique Is the Presence of Outliers Problematic