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Physics, 13.03.2020 22:08 andrwisawesome0

In using an interrupted time-series design, how does one determine whether the independent variable had an effect?a. by looking for changes in the response pattern from pre- to post-treatment b. by using the chi-square statistic c. by comparing pre-treatment mean performance to post-treatment mean performance d. by comparing the treatment group's data to a single observation of a control group

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