Introduction We Should Use Nonexperimental Methods When

question 28

Multiple Choice

Introduction We should use nonexperimental methods when

• A)an experiment would be unethical or not possible.
• B)external validity is less important to us than internal validity.
• C)the experimental hypothesis is not testable.
• D)we want to establish a causal relationship.

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Definitions:

Deseasonalize

The process of removing seasonal effects from a time series to better identify trends.

Seasonal Indexes

Quantitative measures that represent how a seasonal pattern affects the data over a specific period, often used in time series analysis to adjust predictions for seasonal effects.

Time Series

A continuous chain of data points, often resulting from measurements taken one after another within a certain timeframe.

Forecasting Models

Quantitative and qualitative techniques used to predict future events or data points based on historical trends and patterns.