100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Exercise 21 Understanding Mann-Whitney U Test R117,98   Add to cart

Exam (elaborations)

Exercise 21 Understanding Mann-Whitney U Test

 4 views  0 purchase
  • Course
  • Institution

Exercise 21 Understanding Mann-Whitney U Test

Preview 1 out of 3  pages

  • September 9, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
avatar-seller
Exercise 21

1. What type of measurement method is the Memorial Symptom Assessment Scale (MSAS)

that was used to collect data in the Eckerblad et al. (2014) study? The data collected with

this scale are at what level of measurement? Provide a rationale for your answer.

a. The MSAS collected data at the nominal level, yes or no.

b. For every “yes” answer, an ordinal level of measurement was used to rank

frequency, severity and distress.

2. What statistical technique was computed to determine differences between the moderate

and severe airflow groups for physical and psychological symptoms burden scores? What

was the rationale for using this technique?



a. Mann-Whitney U was used as the data was collected at the ordinal level and

therefore did not meet the assumptions for a parametric test.

3. What statistics were used to describe the physical and psychological symptoms presented

in Table 3? Were these statistics appropriate for describing the MSAS symptoms burden

scores? Provide a rationale for your answer.

a. Mann-Whitney U was used appropriately to describe the data as the MSAS burden

scores were collected at the ordinal level for frequency, severity and distress.

4. What statistics were more appropriate to describe the physical and

psychological symptoms in Table 3? Provide a rationale for your answer. a. The Mann-

Whitney U is appropriate for data analysis as the

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

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 this summary 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 this summary for R117,98. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

84190 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Start selling
R117,98
  • (0)
  Buy now