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A health psychologist tests a new intervention to determine if it can change healthy behaviors among...

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Basic Math

A health psychologist tests a new intervention to determine ifit can change healthy behaviors among siblings. To conduct the thistest using a matched-pairs design, the researcher gives one siblingan intervention, and the other sibling is given a control taskwithout the intervention. The number of healthy behaviors observedin the siblings during a 5-minute observation were thenrecorded.

Intervention
YesNo
54
35
64
65
64
44

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


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

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