Solution Manual for
b b
Statistics for Nursing
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zb Research A b
b Workbookfor b
b Evidence-Based
b Practice 4th Edition
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zb Susan Grove Daisha
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, AnswerzbGuidelineszbforzbQuestionszbto bBe zGraded
EXER zCISE
Identifying Levels zb z
zofMeasurement: Nom
b zb
bz
1
inal, Ordinal, zb zb
Interval, andz zb z z
Ratio bz
The z questions z are z in z bold z followed z by z answers.
1. In zTable z1, zidentify zthe z zlevel z zof z zmeasurement z zfor z zthe z zcurrent z ztherapy z
zvariable. zProvide z a z rationale z for z your z answer.
Answer: zThe zcurrent ztherapy zvariable zwas zmeasured zat zthe znominal zlevel. z zThese z zdrug
zcategories zwere zprobably zdeveloped zto zbe zexhaustive zfor zthis zstudy z zand z zincluded z
zthe zcategories zof zdrugs z zthe z zsubjects z zwere z zreceiving. z zHowever, z zthe z zcategories z
zare z znot zexclusive, zsince z zpatients z zare z zusually z zon z zmore z zthan z zone z zcategory z zof
z zthese z zdrugs z zto zmanage ztheir z zhealth z zproblems. z zThe z zcurrent z ztherapies z zare z znot
z zmeasured z zat z zthe z zordinal zlevel zbecause zthey zcannot z zbe z zrank z zordered, z zsince z
zno z zdrug z zcategory z zcan z zbe z zconsidered zmore zor zless z zbeneficial z zthan z zanother z
zdrug z zcategory z z(see z zFigure z z1-1; z zGrove z z& z zGray, z2019).
2. What z is z the z mode z for z the z current z therapy z variable z in z this z study?
z Provide z azrationale z for zyour z answer.
Answer: z The z mode z for z current z therapy z was z β z blocker. z A z total z of z 100 z (94%)
z of z the z cardiaczpatients
were z z receiving z z this z z category z z of z z drug, z z which z z z was z z z the z z z most z z
z common z z z prescribedzdrug z for z this zsample.
3. What z statistics z were z conducted z to z describe z z the z z BMI z z of z z the z z cardiac z
z patients z z in zthis zsample? zDiscuss zwhether zthese zanalysis ztechniques zwere
zappropriate zor zinappropriate.
Answer: z BMI z was z described z z zwith z z za z z zmean z z zand z z zstandard z z zdeviation z z z(SD). z z
zBMI zmeasurement z resulted z in z ratio-level z data z with z continuous z values z and z z zan z z
zabsolute z z zzero z(Stone z & z Frazier, z 2017). z z zRatio- z z zlevel z data z should z be z analyzed
z with z parametric z statistics zsuch z as z the z mean z and z SD z (Grove z & z Gray, z2017; z Knapp,
z 2017).
4. Researchers z used z the z following z item z to z measure z registered z nurses’ z (RNs)
z income z inza z study: zWhat z category z identifies z your z current z income z as z an z RN?
a. Less z than z $50,000
b. $50,000 z to z 59,999
c. $60,000 z to z 69,999
d. $70,000 z to z 80,000
e. $80,000 z or z greater
What z level z of z measurement z is z this z income z variable? z Does z the z z income z
z variablezfollow z the z rules z outlined z in z Figure z 1-1? z Provide z a z rationale z for z your
z answer.
Answer: z In z this z example, z the z income z variable z is z measured z at z the z ordinal z level.
z Thezincome z catego- z ries z are z exhaustive, z ranging z from z less z than z $50,000 z to
z greater z than
,$80,000. z The z two z open-ended
, AG z 1-1
