The Basic Theory of Reliability Was First Worked Out by

question 3

Multiple Choice

The basic theory of reliability was first worked out by

• A)Karl Pearson.
• B)Charles Spearman.
• C)Julian Stanley.
• D)Lee Cronbach.

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Definitions:

Grade Equivalent

A measure that describes a student's performance in comparison to the average performance of students in a specific grade level.

Publisher Mean

A statistical metric that represents the average or mean score of all participants on a particular test as determined by the test's publisher.

Nominal Scale

A scale of measurement in which numbers are arbitrarily assigned to represent different categories or variables. The only math that can be applied to these numbers is calculation of the mode.

Arbitrarily Assigned

Assignments or classifications made without any specific criteria or reason, relying on random choice.