You Want to Study Whether or Not the Use of Computers

question 39

Essay

You want to study whether or not the use of computers in the classroom for elementary students has an effect on performance. Explain in some detail how you would ideally set up such an experiment and what threats to internal and external validity there might be.

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Definitions:

Fisher's Exact Test

A statistical significance test used for small sample sizes, analyzing the association between two categorical variables.

2 × 2 Table

A contingency table with two rows and two columns used to display the frequency distribution of variables' combinations.

Significance Level

The threshold below which a p-value is considered strong enough to reject the null hypothesis in statistical testing.

Degrees of Freedom

The number of independent values or quantities that can vary in the calculation of a statistic, often impacting its distribution.