The Main Difference Between Internal Validity and External Validity Is

question 151

Multiple Choice

The main difference between internal validity and external validity is that:

• A) external validity concerns the degree to which the experiment supports clear causal conclusions, while internal validity concerns the generalizability of the results.
• B) internal validity concerns the degree to which an experiment supports clear causal conclusions, while external validity concerns the generalizability of the results.
• C) internal validity is based on dependent variables, while external validity is based on independent variables.
• D) internal validity is based on independent variables, while external validity is based on dependent variables.

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Definitions:

Replenishment Cycle

The recurring process of restocking sold-out or used products in inventory to maintain a desired stock level.

ESC (Expected Shortage per Cycle)

A metric used in inventory management forecasting the expected stockout quantity for a given inventory cycle, aiding in optimization and planning.

Safety Inventories

Stock that is maintained to buffer against uncertainties in demand or supply, ensuring product availability.

Demand Uncertainty

The unpredictability related to the demand for products or services, often causing challenges in supply chain management.