Test Bank - for Statistics for Nursing Research A Workbook for Evidence-Based Practice 3rd Edition by Susan K. Grove, All Chapters | Complete Guide A+

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The questions are in bold followed by answers.
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1. In Table 1, identify the level of measurement for the current therapy variable. Provide a
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rationale for your answer.
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Answer: The current therapy variable was measured at the nominal level. These drug c nm nm n m nm nm nm nm nm nm nm nm nm nm n m nm nm n m




ategories were probably developed to be exhaustive for this study and included the categories
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of drugs the subjects were receiving. However, the categories are not exclusive, since patients
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nare usually on more than one category of these drugs to manage their h ealth problems. The
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current therapies are not measured at the ordinal level because theycannot be rank
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ordered, since no drug category can be considered more or less benefi cial than another drug
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category (see Figure 1-1; Grove & Gray, 2019).
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2. What is the mode for the current therapy variable in this study? Provide a rationale for
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n your answer.
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Answer: The mode for current therapy was β blocker. A total of 100 (94%) of the n m nm n m n m n m n m n m n m n m n m n m n m n m n m n m




n cardiac patients
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were receiving this category of drug, which was the most common prescribed drug for
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nthis sample.
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3. What statistics were conducted to describe the BMI of the cardiac patients in this
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sample? Discuss whether these analysis techniques were appropriate or inappropri ate.
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Answer: BMI was described with a mean and standard deviation (SD). BMI measurement resultednm nm nm nm nm nm nm nm nm nm nm nm nm




in ratio- nm nm




level data with continuous values and an absolute zero (Stone & Frazier, 2017). Ratio- level data
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should be analyzed with parametric statistics such as the mean and SD (Gro ve & Gray,
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2017; Knapp, 2017).
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4. Researchers used the following item to measure registered nurses’ (RNs) income in nm nm nm nm nm nm nm nm nm n m n m




nastudy: What category identifies your current income as an RN?
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a. Less than $50,000 n m n m n m




b. to 59,999
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c. to 69,999
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d. to 80,000
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e. or greater
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What level of measurement is this income variable? Does the income variable follow the
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rules outlined in Figure 1-1? Provide a rationale for your answer.
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Answer: In this example, the income variable is measured at the ordinal level. The nm nm nm nm nm nm nm nm nm nm nm n m n m




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, ries are exhaustive, ranging from less than $50,000 to greater than $80,000. The two open-
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