Find the Cardinal Number for the Set

question 7

Multiple Choice

Find the cardinal number for the set.  = {5, 10, 15, . . . , 45}

• A) n() = 9
• B) n() = 45
• C) The set is infinite.
• D) n() = 4

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Definitions:

Test-Retest Reliability

The consistency of an individual's score on the same test administered at two different times.

Validity

The extent to which a test, tool, or method accurately measures what it is intended to measure.

Parallel Forms Reliability

A measure of reliability used to assess the consistency of the results of two tests constructed in the same way from the same content domain.

Content Validity

The extent to which a test or measurement instrument covers the content that it is supposed to measure.