Using Letter Grades (A,B,C,D,and E)to Classify Student Performance on an Exam

question 69

Multiple Choice

Using letter grades (A,B,C,D,and E) to classify student performance on an exam is an example of measurement on a(n) ____ scale of measurement.​

• A)​nominal
• B)​ordinal
• C)​interval
• D)​ratio

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Definitions:

Variation

The differences or deviations among individuals or items within a population, causing diversity in characteristics or outcomes.

Explanatory Variables

Independent variables in a model that are presumed to affect or determine a dependent variable.

MSR/MSE

Mean Square Residual/Mean Square Error, a measure used in statistics to estimate the variance of error or residual components.

T-Test Statistic

A statistic derived from sample data to determine if there is a significant difference between the means of two groups under study.