Why Might Nonparametric Statistical Methods Be Used for Analysis

question 13

Multiple Choice

Why might nonparametric statistical methods be used for analysis?

• A)The level of measurement of the variables is nominal.
• B)The researcher prefers to use these statistical tests.
• C)The null hypothesis is absent.
• D)The sample is small or lacks a normal distribution.

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Definitions:

Type I Error

A Type I Error occurs when the null hypothesis is incorrectly rejected when it is actually true.

Set Of Comparisons

A general term that could describe various statistical or evaluative processes aimed at comparing different sets of data or outcomes.

Familywise Error

The probability of making one or more Type I errors across multiple hypothesis tests.

Tukey Test

A statistical test used to compare the means of three or more groups to find out which ones significantly differ from each other.