Concatenated Keys Are

question 31

Multiple Choice

Concatenated keys are

• A) only needed when combining two or more REA diagrams.
• B) foreign keys used to implement 1:N or 1:1 relationships.
• C) multiple attribute keys used to implement 1:N relationships.
• D) required to implement M:N relationships.

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Definitions:

Cohort Design

A study design in which a group of individuals sharing a defining characteristic (e.g., birth year) is followed over time to study outcomes of interest.

Cross-Sectional Design

A research method that analyzes data from a population, or a representative subset, at a specific point in time.

Nature Versus Nurture

The ongoing debate regarding the relative contributions of genetic inheritance and environmental factors to human development.

Aggressive

Exhibiting forceful behavior or attitudes with the intention to dominate or harm others.