When You Define a Table's Primary Key, the DBMS Automatically

question 56

Multiple Choice

When you define a table's primary key, the DBMS automatically creates a(n) _____ index on the primary key column(s) you declared.

• A) key
• B) composite
• C) unique
• D) primary

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Definitions:

Item-total Correlation

The correlation between scores on individual items and the total score on all items of a test or questionnaire.

Convergent Validity

A measure of the degree to which two different assessments of the same concept are correlated, indicating the validity of the constructs.

Face Validity

The extent to which a test appears to measure what it's supposed to measure, making it seem valid at face value.

Concurrent Validity

Concurrent validity is the extent to which test scores or measurements are correlated with other measures or outcomes that are theoretically related and taken at the same time.