Cronbach's Coefficient Alpha Is Used for

question 44

Multiple Choice

Cronbach's coefficient alpha is used for

• A) determining the reliability of true-false tests.
• B) determining concurrent validity.
• C) computing reliability of tests having items with answers that are weighted differently.
• D) obtaining an estimate of test equivalence and stability.

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Definitions:

Mean

The arithmetic average of a set of numbers computed by adding them together and dividing by the count of those numbers.

Median

The middle value in a data set when the values are arranged in ascending or descending order.

Skewed

A description of data that are not symmetrically distributed around the mean, often indicating a longer tail on one side of the distribution.

Parameter

In statistical analysis, a parameter is a quantity that characterizes a certain aspect of a population or a model.