Test Bank - for Statistics for
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Nursing Research A
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Workbook for Evidence-
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Based Practice 3rd Edition
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by Susan K. Grove, All
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Chapters | Complete Guide
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A+
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for
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, AG 1-2 `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! Answer ` l ` ! Guidelines ` l ` ! for ` l ` ! Questions ` l ` ! to ` l ` ! Be ` l ` ! Grade
`l`! categories ensure that all salary levels are covered The categories are not exclusive, sinc
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`l`! e categories-
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(d) and (e) include an $80,000 salary, so study participants making
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$80,000 might mark either (d) or (e) or both categories, resulting in erroneous
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data. Category (e) c ould be changed
`l`! ` l` ! to greater than $80,000, making the
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`l`! categories exclusive. The categor ies can be rank ordered from the lowest `l`! ` l` ! `l`! ` l` ! `l`! `l`! `l`! ` l` ! `l`! ` l` ! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`!
salary to the highest salary, which is consiste nt with ordinal data (Grove &
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Gray, 2019; Waltz et al., 2017).
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1. What level of measurement is the CDS score?
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rationale
` l ` ! for your answer. Answer: The CDS score is at the interval ` l ` ! ` l ` ! ` l ` ! `l`! `l`! `l`! ` l` ! `l`! ` l` ! `l`! ` l` ! `l`! ` l`! `l`! `l`! `l`! `l`! `l`!
level of measurement. The CDS is a 26- item Likert scale developed to
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measure depression in cardiac patients. Study participants rated their symp-
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toms on a scale of 1 to 7, with higher numbers indicating increased severity in
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thedepression symptoms. The total scores for each subject obtained from this
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multi-
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item scale are considered to be at the interval level of measurement (Gray et
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al., 2017
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; Waltz et al., 2017).
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5. Were nonparametric or parametric analysis techniques used to analyze the
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CDS scores
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your answer. Answer: Parametric statistics, such as mean and SD, were
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conducted to describe CDS scores
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1). CDS
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level data as indicated in Questions 5, so parametric statistics are appropriate for
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this level of data (Gray et al., 2017; Kim & Mallory, 2017).
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7. Is the prevalence of depression linked to the NYHA class? Discuss the clinical
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importance of this result.
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Answer: The study narrative indicated that the prevalence of depression ` l` ! `l`! `l`! `l`! `l`! `l`! `l`! `l`! `l`! ` l`! `l`! `l`! `l`! `l`! `l`! ` l` ! `l`!
increased with the greater
` l` ! NYHA class. In NYHA class III, 64% of`l`! `l`! `l`! `l`! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` !
the subjects were
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depressed in
` l ` ! NYHA class I. Thus, as the NYHA class ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` ! ` l ` !
increased,
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jects with depression increased. This is an expected finding because as the
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NYHA classincreases, cardiac patients have more severe physical symptoms,
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which usually result in emotional distress, such as depression. Nurses need to
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actively assess cardiac patients for depression,
`l`! especially those in
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NYHA
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needed.
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8. What frequency and percent of cardiac patients in this study were not
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being trea ted with an antidepressant? Show your calculations and round your
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answer to the nearest whole percent (%).
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Answer: A total of 106 cardiac patients participated in this
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The sample
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antidepressant (see Table 1). The number
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treated for depression was 91 (106 –
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15 = 91). The group percent is calculated by
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formula:
` l ` ! (group frequency ÷ total sample size) × 100%. For `l`! ` l ` ! `l`! ` l ` ! l̀`! ` l ` ! ` l ` ! ` l ` ! `l`! ` l ` ! `l`! ` l ` ! ` l ` ! `l`! ` l ` ! `l`!
this study, (91
` l ` ! patients ÷ 106 sample
`l`! size) × 100% = 0.858
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× 100% = 85.8% = 86%. The final answer is rounded to the
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nearest
` l ` ! whole percent as directed in the question. You could
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have also subtracte d the 14% of patients treated with antidepressants from
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, `l`! 100% and obtained the 86% who were not treated with an antidepressant.
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t. What was the purpose of the 5-
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minute walk test (5MWT)? Would the 5MWT be useful in clinical practice?
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Answer: Ha et al. (2018) stated,
` l` ! ―The 6-
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min walk test (6MWT) is
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state functional capacity‖ of cardiac patients. This test would be a quick, easy way
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to determine a cardiac patient’s functional status in a clinical
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setting.
` l ` ! This functionalstatus score could be used to determine the
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treatment plan to promote or maintain
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