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Compute effect size using eta-squared

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A health psychologist tests a new intervention to determine if it can change healthy behaviors among siblings. To conduct the this test using a matched-pairs design, the researcher gives one sibling an intervention, and the other sibling is given a control task without the intervention. The number of healthy behaviors observed in the siblings during a 5-minute observation were then recorded.InterventionYesNo754675666565

(a) Test whether or not the number of healthy behaviors differ at a 0.05 level of significance. State the value of the test statistic. (Round your answer to three decimal places.)

State the decision to retain or reject the null hypothesis.

Retain the null hypothesis.

Reject the null hypothesis.

(b) Compute effect size using eta-squared. (Round your answer to two decimal places.)

Reference no: EM132845662

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