In a Database, A(n) ____ Field Is a Field That

question 150

Multiple Choice

In a database, a(n) ____ field is a field that uniquely identifies each record in a file.

• A) main
• B) identifying
• C) master
• D) key

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Definitions:

Random Assignment

A method used in experiments to evenly distribute individuals across various treatment groups, ensuring that each group is similar at the start of the study.

Cohort

A group of individuals sharing a common characteristic, typically shared within a defined time frame, often used in studies to compare changes over time or across different groups.

Interests

Personal likes, preferences, or areas of particular focus or enthusiasm an individual has.

Sequential Design

A research methodology that combines elements of both cross-sectional and longitudinal designs to study changes within a population over time.