Using Relational Notation,an Attribute of a Relation That Is the Primary

question 78

Multiple Choice

Using relational notation,an attribute of a relation that is the primary key of another relation is indicated by:

• A)an underline
• B)a circle
• C)a dashed underline
• D)italics

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Definitions:

Reactive Validity

The extent to which the act of measuring influences the measurement or behavior being observed.

Construct Validity

Construct validity is the extent to which a test measures what it claims to be measuring, reflecting the accuracy of an operationalization of a theoretical construct.

Split-half Reliability

This is a measure of consistency where a test is divided into two parts, and the scores from each half are compared to evaluate the test's reliability.

Test-retest Reliability

The reliability of a measurement determined by evaluating the same people on two separate occasions.