Exam (elaborations)
Exercise 13 Understanding Pearson Product-Moment Correlation Coefficient
- Course
- MATH 302
- Institution
- American Military University
Exercise 13 Understanding Pearson Product-Moment Correlation Coefficient
[Show more]
Content preview
Exercise 13: Understanding PearsonProduct-Moment Correlation Coefficient
1. What is the value of the Pearson r for the relationship between variables 1 and 6? Identify
the variables correlated in this relationship.
-r=0.25**. The variables are perceived quality of care and physician collegiality
2. Describe the correlation r= -0.42** using words. Is this a significant correlation? Provide
rationale.
-r=-0.42 is a negative relationship, where an increase in perceived quality of care is
associated with or related to a decrease in the patient care demand. This is a moderate
relationship since the r value lies between -0.30 and -0.50. It is a significant correlation as
indicated by ** described in the footnote of Table 2 as p<0.01. Since p<0.01 is smaller than
alpha=0.05 for the study, the relationship is statistically signigicant.
3. What percentage of variance is explained by the relationship between the variables
perceived quality of care and patient care demands? Show calcs and round answer to two
decimal places.
-Ans: 17.64% variance explained by the relationship between perceived quality of care and
patient care demands
-r^2 x 100%=% variance explained by a relationship; Calc:
(0.42)^2x100%=0.1764x100%=17.64%
4. Is this relationship between the variables perceived quality of care and patient care
demands clinically important? Provide rationale.
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)
78075 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
