n n n n n n
Chapter 1: The New Statistics
n n n n
MultiplenChoice
1. Anvariablenthatnisnstatisticallyncontrolledninnannanalysisnisna(n) .
a. annindependentnvariable
b. andependentnvariable
c. ancovariate
d. anmanipulatednvariablen
Ans:nC
CognitivenDomain:nKnowledge
AnswernLocation:n1.1:nRequirednBackgroundnDifficult
ynLevel:nEasy
2. Innpastnyears,nmanyninvestigatorsnhavenfailedntonreport .
a. theneffectnsize
b. thensamplensizes
c. descriptivenstatistics
d. obtainednpnvaluesn
Ans:nA
CognitivenDomain:nKnowledge
AnswernLocation:n1.2:nWhatnisnthen“NewnStatistics”?n
DifficultynLevel:nEasy
3. Anprimarynconcernnofninvestigatorsnhasnbeen,nandnoftennstillnis,nobtainingnanpnvaluenof
n
.n
a.n.10
b.n.05
c.n.01
d.n.000
Ans:nB
CognitivenDomain:nKnowledge
AnswernLocation:n1.2:nWhatnIsnthen“NewnStatistics”?n
DifficultynLevel:nEasy
4. AnmajornchangenadvocatednbynNewnStatisticsnis .
a. reducednemphasisnonneffectnsize
b. focusnonnthenresultsnofnsinglenstudies
c. notnreportingnconfidencenintervals
d. understandingnthenlimitationsnofnsignificancentestsn
Ans:nD
,CognitivenDomain:nKnowledge
AnswernLocation:n1.2:nWhatnisnthen“NewnStatistics”?n
DifficultynLevel:nEasy
5. AnprimarynchangenproposednbynadvocatesnofnNewnStatisticsninvolvesnsummarizingne
ffectnsizesnfromnannumbernofnstudiesnusing .
a. Bayesiannstatistics
b. meta-analysis
c. multivariatenanalysis
d. descriptivenstatisticsn
Ans:nB
CognitivenDomain:nKnowledge
AnswernLocation:n1.2:nWhatnIsnthen“NewnStatistics”?n
DifficultynLevel:nEasy
6. AnnemphasisnofnNewnStatisticsnis .
a. usingnincreasinglynprecisenpnvalues
b. developingnnewnmethodsnofnstatisticalnanalysis
c. reducingnemphasisnonnconfidencenintervalninterpretation
d. adoptingnanmorencriticalnperspectivenwhennconsideringnsignificancen
Ans:nD
CognitivenDomain:nKnowledge
AnswernLocation:n1.2:nWhatnIsnthen“NewnStatistics”?n
DifficultynLevel:nEasy
7. WhichnofnthenfollowingntypesnofninformationnisnprovidedntoninvestigatorsnbynNHST?
a. whethernthenhypothesisnofnthenstudynhasnbeennproven
b. thenprobabilitynthatnthenresearchnhypothesisnisntrue
c. thenprobabilitynofnobtainingnresultsnaboutnthenH0n basednonnonensample
d. thenexactnprobabilitynofnobtainingnthensamenresultsnonnreplicationn
Ans:nC
CognitivenDomain:nAnalysis
AnswernLocation:n1.3:nCommonnMisinterpretationsnofnpnValuesnDi
fficultynLevel:nHard
8. Whennreadingnannarticlenthatnreportsnthenresultsnofnmultiplenstatisticalntests,nreadersns
houldnremembernthatnmultiplentests .
a. provideninaccurateninformationnaboutnthenrisksnofnTypenInerrors
b. provideninaccurateninformationnaboutnthenrisksnofnTypenIInerrors
c. enhancenunderstandingnofncausenandneffectnrelationships
d. providenreliableninformationnaboutnthensizenandnimportancenofneffectsn
Ans:nA
CognitivenDomain:nApplication
AnswernLocation:n1.3:nCommonnMisinterpretationsnofnpnValuesnDi
fficultynLevel:nMedium
,9. AnnadvocatenofnNewnStatisticsnwouldnobjectntonanresearchnreportnthatnincludednans
tatementnlikenthe .
a. resultsnofnournstudynarenconsistentnwithnanrecentnmeta-analysis
b. significantnresultsnshouldnbeninterpretedncautiouslynduentonthenlargensamplensize
c. resultsnofnournstudynapproachednstatisticalnsignificance
d. resultsnofnournstudynprovidensupportnfornourninitialnhypothesisn
Ans:nC
CognitivenDomain:nApplication
AnswernLocation:n1.3:nCommonnMisinterpretationsnofnpnValuesnDi
fficultynLevel:nMedium
10. Ifnanstatisticalnanalysisnyieldsnpn=n.03,nanresearchnreportncannincludenanstatementnlike
n .
a. thenresultsnofnournstudynarenlikelyntonbenreplicated
b. thenevidencenisnconsistentnwithnthenhypothesisnofnournstudy
c. therenisnan97%nchancenthatnthennullnhypothesisnofnournstudynisnfalse
d. thenresultsnofnournstudyncannotnbenexplainednbynchancen
Ans:nB
CognitivenDomain:nApplication
AnswernLocation:n1.3:nCommonnMisinterpretationsnofnpnValuesnDi
fficultynLevel:nMedium
11. AnnadvocatenofnNewnStatisticsnwouldnsupportnanpnvaluenreportednas
.na.npn=n.0000
b.npn<n.01
c.npn<n.05
d.npn=n.025
Ans:nD
CognitivenDomain:nKnowledge
AnswernLocation:n1.4:nProblemsnwithnNHSTnLogicnDif
ficultynLevel:nEasy
12. AnproblemnwithnNHSTnlogicnisnthatnit .
a. eliminatesnthenneedntonthinkninntermsnofndoublennegatives
b. encouragesninvestigatorsntondescribenstudynresultsninntermsnofnuncertainty
c. cannotntellninvestigatorsnwhatntheynwantntonknow
d. isnusednconsistentlynandncorrectlyninnthenmajoritynofnstudiesn
Ans:nC
CognitivenDomain:nComprehension
AnswernLocation:n1.4:nProblemsnwithnNHSTnLogicnDif
ficultynLevel:nMedium
13. Annimportantnassumptionnunderlyingnthenusenofnannindependentnsamplesntntestnorno
ne-waynANOVAnisnthat .
a. thengroupingnvariablesnarennormallyndistributedninnthenpopulation
, b. thenvariancesnofnthengroupsnonnthendependentnvariablenarenequal
c. allnparticipantsnrespondentsnrespondedntonbothnthenpretestnandnthenposttest
d. allnscoresninneachngroupnlienwithinnonenstandardndeviationnofnthenmeannA
ns:nB
CognitivenDomain:nComprehension
AnswernLocation:n1.5.1:nViolationsnofnAssumptionsnD
ifficultynLevel:nMedium
14. AnnimportantnassumptionnunderlyingnthenusenofnPearsonnrnisnthat .
a. thenrelationshipnbetweennthentwonvariablesnisnlinear
b. thenvariancesnofnthenXnandnYnscoresnarenequal
c. allnparticipantsnrespondentsnrespondedntonbothnthenpretestnandnthenposttest
d. allnscoresninneachnvariablenlienwithinnonenstandardndeviationnofnthenvariablenmeann
Ans:nA
CognitivenDomain:nComprehension
AnswernLocation:n1.5.1:nViolationsnofnAssumptionsnD
ifficultynLevel:nMedium
15. AnfrequentnviolationnofnthenrulesnfornusingnNHSTnis .
a. performingnonlynonensignificancentest
b. selectingnrandomnsamplesnfromnthenpopulationnofninterest
c. selectingnthenstatisticalntestnafterndatancollection
d. selectingnthencriterionnpnvaluenbeforenanalyzingnthendatan
Ans:nC
CognitivenDomain:nAnalysis
AnswernLocation:n1.5.2:nViolationsnofnRulesnfornUsenofnNHSTnDiffi
cultynLevel:nHard
16. Ifnscoresnonnannattitudenscalencannrangenfromn0nton60nwithnmostnscoresnlyingnbetweenn2
0nandn45,nscoresnofn7nandn57ncouldnbe .
a. likelihoodnerrors
b. probabilitynerrors
c. extraneousnvariables
d. outliersn
Ans:nD
CognitivenDomain:nAnalysis
AnswernLocation:n1.5.2:nViolationsnofnRulesnfornUsenofnNHSTnDiffi
cultynLevel:nHard
17. Anotherntermndescribingnthenprocessnofntestingnthenreproducibilitynofnresearchnresultsnb
ynrepeatingnstudiesninndifferentnsettingsnwithndifferentnparticipantsnis .
a. replication.
b. generalization
c. normalization
d. refutationn
Ans:nA