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question 356

Essay

Simplify:
∙

Understand the implications of significant and nonsignificant statistical findings.

Recognize the role of chance factors, including Type I errors, in statistical analysis.

Understand the concept of effect size in statistical analysis.

Identify what constitutes small, medium, and large effect sizes according to Cohen's benchmarks.

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Definitions:

Range

The difference between the highest and lowest values in a dataset, providing a measure of data dispersion.

Variance

A statistical measure that quantifies the spread or dispersion of a set of data points around their mean value.

Percentile

A value in a data set below which a certain percentage of observations fall.

STDEV.P(data range)

A function in spreadsheet software that calculates the standard deviation of a dataset, considering the entire population.