If Ordinal Data Were Obtained from a Three-Group, Matched-Subjects Design

question 24

Multiple Choice

If ordinal data were obtained from a three-group, matched-subjects design, then the appropriate test would be the

• A) T
• B) H
• C) U
• D) Friedman ANOVA by ranks

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Definitions:

Standard Error

A measure that describes the distribution of sample means around the population mean, indicating the precision of the sample mean as an estimate of the population mean.

Plus Four Estimate

A method used in statistics to adjust a sample size by adding four observations: two at the high end and two at the low end of the dataset.

Sampling Variability

The natural variation in statistics (such as the mean) that occurs from one sample to another.

SRS

Simple random sampling, a basic probabilistic method ensuring each member of a population has an equal chance of being included in the sample.