Exam (elaborations)
Exercise 10 Description of a Study Sample
- Course
- MATH 302
- Institution
- American Military University
Exercise 10 Description of a Study Sample
[Show more]
Content preview
Exercise 10: Description of a Study Sample1. What demographic variables were measured at the nominal level of measurement in the Oh
et al. (2014) study? Provide a rationale for your answer.
Bone mineral density (BMD) was a variable measure at the nominal level. The BMD of each
participant was measured then place into one of three groups: normal, osteopenia, and
osteoporosis.
2. What statistics were calculated to describe body mass index (BMI) in this study? Were
these appropriate? Provide a rationale for your answer.
The BMI in this study were described as a mean of 23.8 kg/m2 (SD = 3.2)
The description of BMI does not seem appropriate because of the vast age span of 51-83, as
well as, the variability in height and weight.
3. Were the distributions of scores for BMI similar for the intervention and control groups?
Provide a rationale for your answer.
Yes, the SD for the intervention group was 3.14 and the SD for the control group was
3.32
4. Was there a significant difference in BMI between the intervention and control groups?
Provide a rationale for your answer.
No. The difference in BMI between the intervention and control groups was 0.79.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Angelicer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83662 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now