Solution Manual for Statistics for Nur
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sing Research AWorkbook for Eviden
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Based Practice, 3rd Edition, Susan Gr
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ove, Daisha Cipher LATEST 2023
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,Solution Manual for
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Statistics for Nursing Rese
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archA Workbook for Evid
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Susan Grove Daisha
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, Answer Guidelines for Questions to Be Graded
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Measurement:Nominal,
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1
Ther questionsr arer inrboldr followedr byr answers.
1. InrTabler1,ridentifyrtherlevelrofrmeasurementrforrthercurrentrtherapyrvariable.rProviderarratio
nalerforryourranswer.
Answer:rThercurrentrtherapyrvariablerwasrmeasuredratrthernominalrlevel.rTheserdrugrcategoriesrw
ererprobablyrdevelopedrtorberexhaustiverforrthisrstudyrandrincludedrthercategoriesrofrdrugsrthersubj
ectsrwererreceiving.rHowever,rthercategoriesrarernotrexclusive,rsincerpatientsrarerusuallyronrmorert
hanronercategoryrofrtheserdrugsrtormanagertheirrhealthrproblems.rThercurrentrtherapiesrarernotrme
asuredratrtherordinalrlevelrbecausertheyrcannotrberrankrordered,rsincernordrugrcategoryrcanrberconsi
deredrmorerorrlessrbeneficialrthanranotherrdrugrcategoryr(seerFigurer1-1;rGrover&rGray,r2019).
2. Whatr isr ther moder forr ther currentr therapyr variabler inr thisr study?r Provider ar rationaler forr
yourranswer.
Answer:rThermoderforrcurrentrtherapyrwasrβrblocker.rArtotalrofr100r(94%)rofrthercardiacrpatientsrwere
r receivingr thisr categoryr ofr drug,r whichr wasr ther mostr commonr prescribedr drugr forr thisrsample.
3. WhatrstatisticsrwererconductedrtordescribertherBMIrofrthercardiacrpatientsrinrthisrsample?rDis
cussr whetherr theser analysisr techniquesr werer appropriater orr inappropriate.
Answer:rBMIrwasrdescribedrwithrarmeanrandrstandardrdeviationr(SD).rBMIrmeasurementrresultedr inrr
atio-levelr datar withr continuousr valuesr andr anr absoluter zeror (Stoner &r Frazier,r 2017).r Ratio-
rlevelrdatarshouldrberanalyzedrwithrparametricrstatisticsrsuchrasrthermeanrandrSDr(Grover&rGray,r2017;
rKnapp,r2017).
4. Researchersrusedrtherfollowingritemrtormeasurerregisteredrnurses’r(RNs)rincomerinrarstudy:r
WhatrcategoryridentifiesryourrcurrentrincomerasranrRN?
a. Lessr thanr $50,000
b. $50,000r tor 59,999
c. $60,000r tor 69,999
d. $70,000rtor80,000
e. $80,000r orr greater
Whatrlevelrofrmeasurementrisrthisrincomer variable?r Doesrtherincomer variabler followrtherrule
sroutlinedr inr Figurer 1-1?r Provider ar rationaler forr yourr answer.
Answer:rInrthisrexample,rtherincomervariablerisrmeasuredratrtherordinalrlevel.rTherincomercatego-
rriesr arer exhaustive,r rangingr fromr lessr thanr $50,000r tor greaterr thanr $80,000.r Ther twor open-ended
AGr 1-1
, AGr1-2 AnswerrGuidelinesrforrQuestionsrtorBerGraded
categoriesrensurerthatrallrsalaryrlevelsrarercovered.rThercategoriesrarernotrexclusive,rsincercatego-
rriesr(d)randr(e)rincluderanr$80,000rsalary,rsorstudyrparticipants rmakingr$80,000rmightrmarkreithe
rr(d)rorr(e)rorrbothrcategories,rresultingrinrerroneousrdata.rCategoryr(e)rcouldrberchangedr torgreate
rrthanr$80,000,rmakingrthercategoriesrexclusive.rThercategoriesrcanrberrankrorderedrfromrtherlow
estrsalaryrtortherhighestrsalary,rwhichrisrconsistentrwithrordinalrdatar(Grover&rGray,r2019;rWaltzr
etral.,r2017).
5. Whatr levelrofr measurementr isrther CDSrscore?r Provider arrationaler forr yourr answer.
Answer:rTherCDSrscorerisratrtherintervalrlevelrofrmeasurement.rTherCDSrisrar26-
itemrLikertrscalerdevelopedrtormeasurerdepressionrinrcardiacrpatients.rStudyrparticipantsrratedrthe
irrsymp-
rtomsronrarscalerof r1rtor7,rwithrhigherrnumbersrindicatingrincreasedrseverityrinrtherdepressionrsym
ptoms.rThertotalrscoresrforreachrsubjectrobtainedrfromrthisrmulti-
itemrscalerarerconsideredrtorberatrtherintervalrlevelrofrmeasurementr(Grayretral.,r2017;rWaltzretral.,
r2017).
6. WerernonparametricrorrparametricranalysisrtechniquesrusedrtoranalyzertherCDSrscoresrforr th
er cardiacr patientsr inr thisr study?r Provider ar rationaler forr yourr answer.
Answer:r Parametricr statistics,r suchr asr meanr andr SD,r werer conductedr tor describer CDSr scoresrforrs
tudyrparticipantsr(seerTabler1).rCDSrscoresrarerinterval-
levelrdatarasrindicatedrinrQuestionsr5,rsorparametricrstatisticsrarerappropriaterforrthisrlevelrofrdatar(Gra
yretral.,r2017;rKimr&rMallory,r2017).
7. Isr ther prevalencer ofr depressionr linkedr tor ther NYHAr class?r Discussr ther clinicalr importancer
ofrthisrresult.
Answer:r Ther studyr narrativer indicatedr thatr ther prevalencer ofr depressionr increasedr withr thergreate
rrNYHArclass.rInrNYHArclassrIII,r64%rofrthersubjectsrwererdepressed,rwhereasr11%rofrthersubjectsrw
ererdepressedrinrNYHArclassrI.rThus,rasrtherNYHArclassrincreased,rthernumberrofrsub-
rjectsrwithrdepressionrincreased.rThisrisranrexpectedrfindingrbecauserasrtherNYHArclassrincreases,rcard
iacrpatientsrhavermorersevererphysicalrsymptoms,rwhichrusuallyrresultrinremotionalrdistress,rsuchrasrd
epression.rNursesrneedrtoractivelyrassessrcardiacrpatientsrforrdepression,respeciallyrthoser inr higherr N
YHAr classes,r sor theyr mightr ber diagnosedr andr treatedr asr needed.
8. Whatr frequencyr andr percentr ofr cardiacr patientsr inr thisr studyr werer notr beingr treatedr withr
anrantidepressant?rShowryourrcalculationsrandrroundryourranswerrtorthernearestrwholerperce
ntr(%).
Answer:rArtotalr ofr 106r cardiacr patientsr participatedr inr thisr study.r Ther sampler includedr1
5rpatientsrwhorwererreceivingranrantidepressantr(seerTabler1).rTher numberr ofr cardiacr patientsr n
otr treatedr forr depressionr wasr 91r (106r –
r 15r =r91).r Ther groupr percentr isr calculatedrbyr ther followingr formula:r (groupr frequency r ÷rtota
lr sampler size)r ×r100%.r Forr thisr study,r(91rpatientsr÷r106rsamplersize)r×r100%r=r0.858r×r100
%r=r85.8%r=r86%.rTher finalranswerr isrroundedr torther nearestr wholerpercentr asr directedr inrthe
r question. r Your couldr haveralsorsubtracted rther14%rofrpatientsrtreatedrwithrantidepressantsrfrom r
100%randrobtainedrther86%rwhorwerernotrtreatedrwithranrantidepressant.
9. Whatrwasrtherpurposerofrther6-
minuterwalkrtestr(6MWT)?rWouldrther6MWTrberusefulrinrclinicalrpractice?
Answer:rHaretral.r(2018)rstated,r“Ther6-
minrwalkrtestr(6MWT)risrarmeasurerofrthersubmaximal,rsteady-
staterfunctionalrcapacity”rofrcardiacrpatients.rThisrtestrwouldrberarquick,reasyrwayrtordeterminerar
cardiacrpatient’srfunctionalrstatusrinrarclinicalr setting.r Thisr functionalr statusrscorer couldr ber us
edr tor determiner ther treatmentr planr tor promoter orr maintainr functionalr statusrofrcardiacrpatients.
