Copyright © 2017, Elsevier Inc. All rights reserved. Questions to Be Graded EXERCISE 21 Follow your instructor’ s directions to submit your answers to the following questions for grading. Your instructor may ask you to write your answers below and submit them as a hard copy for grading. Alternatively, your instructor may ask you to use the space below for notes and submit your answers online at http://evolve.elsevier.com/Grove/Statistics/ under “Questions to Be Graded.”
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.
2. What statistical technique was computed to determine differences between the moderate and severe airflow limitation groups for physical and psychological symptom burden scores? What was the rationale for using this technique?
3. What statistics were used to describe the physical and psychological symptoms presented in Table 3 ? Were these statistics appropriate for describing the MSAS symptom burden scores? Provide a rationale for your answer.
4. What statistics were more appropriate to describe the physical and psychological symptoms in Table 3 ? Provide a rationale for your answer.
5. State the null hypothesis for the Eckerblad et al. (2014) study focused on examining the differ-ences in shortness of breath between the moderate and severe airflow limitation groups.
6. Was the null hypothesis in Question 5 accepted or rejected? Provide a rationale for your answer.
7. Was there a significant difference between the moderate and severe airflow limitation groups for cough? Provide a rationale for your response.
8. Provide at least three possible reasons for the non significant results in Table 3 .
9. What physical symptom had the highest MSAS symptom burden score for the whole sample? Provide the results that support your answer.
10. Discuss the clinical importance of the results about shortness of breath experienced by both the moderate and severe airflow limitation groups. Document your response.

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