At a School There Are Two Different Math Classes for Children

question 30

Essay

At a school there are two different math classes for children of the same age. have different teachers. The school principal is interested in gauging the effectiveness of two
different teaching methods and asks each teacher to try one of the methods. At the end of the
semester both classes are given the same test and the results are compared. In this experiment,
what is the variable of interest? Give some examples of variables which could be confounding
variables.

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Definitions:

Alpha

The threshold of probability at which the null hypothesis is rejected in statistical testing, often set at 0.05.

Statistical Significance

Indicates the likelihood that a result or relationship is caused by something other than mere chance.

Statistical Probability

The quantification of the likelihood of an event occurring based on a ratio of favorable outcomes to the total number of possible outcomes.

Statistical Precision

How similar the results are when measurements are taken repeatedly in unaltered circumstances.