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

60.1K

Verified Solution

Question

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 then recorded.Intervention Yes 6, 2, 5,6,6,5 No 4,5,4,5,4,4
(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.)
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 totwo decimal places.)

Answer & Explanation Solved by verified expert

3.7 Ratings (385 Votes)

a 1 Null andAlternative HypothesesThe following null and alternative hypotheses need to betestedHo D 0HaD 0This corresponds to a twotailed test for which a ttest fortwo paired samples be used2 See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member