A Tracking Signal Greater Than Zero and a Mean Absolute

question 7

Multiple Choice

A tracking signal greater than zero and a mean absolute deviation greater than zero imply that the forecast has:

• A) no bias and no variability of forecast error.
• B) a nonzero amount of bias and a nonzero amount of forecast error variability.
• C) no bias and a nonzero amount of forecast error variability.
• D) a nonzero amount of bias and no variability of forecast error.

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Definitions:

External Validity

The extent to which the results of a study can be generalized or applied to other settings, populations, or situations outside of the study itself.

Field Experiments

Field experiments are research studies conducted in natural settings outside the laboratory, aiming to investigate the effects of variables in real-world scenarios.

Stimulus Sampling

Using more than one exemplar of a stimulus (e.g., more than one violent video game).

Meta-Analysis

A quantitative literature review that combines the statistical results (e.g., correlation coefficients) from all studies conducted on a topic.