When certain assumptions about the data collected are violated, the researcher must employ ______.
A) nonparametric statistical methods
B) descriptive statistical methods
C) qualitative statistical methods
D) parametric statistical methods

Question

Quizplus · Accepted Answer

Nonparametric statistical methods are used when assumptions of normality, independence, and equal variance are violated. These methods do not rely on specific assumptions about the underlying distribution of the data and are more robust to outliers and skewness. Descriptive statistics simply summarize and describe the data, while qualitative methods involve subjective interpretation and categorization of data. Parametric statistical methods assume normality, independence, and equal variance, which may not be appropriate if assumptions are violated.

When Certain Assumptions About the Data Collected Are Violated, the Researcher