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WEEK 1-10 REVISION QUESTIONS WITH CORRECT ANSWERS.
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WEEK 1-10 REVISION QUESTIONS WITH CORRECT ANSWERS.
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WEEK 1-10 REVISION QUESTIONS WITHCORRECT ANSWERS
Participants wwresponse wwtimes wwimproved wwover wwthe wwone wwhour wwtesting
wwsession. ww- wwAnswer wwTesting wweffect
Participants wwliving wwin wwrural wwVictoria wwwere wwmore wwanxious wwat wwTime wwTwo
wwin wwFebruary ww2009 wwcompared wwto wwTime wwOne wwa wwyear wwearlier. ww-
wwAnswer wwHistory
An wwIQ wwscore wwof ww136 wwwas wwfound wwat wwTime ww1 wwand ww126 wwat wwTime
wwTwo. ww- wwAnswer wwRegression wwto wwthe wwmean
Children wwwere wwfound wwto wwhave wwimproved wwsocial wwconcept wwand wwreduced
wwseparation wwanxiety wwover wwthe wwcourse wwof wwa wwthree wwyear wwlongitudinal
wwstudy. ww- wwAnswer wwMaturation
The wwrate wwof wwparticipants wwwith wwa wwpersonality wwdisorder wwwas wwgreatly
wwreduced wwwhen wwa wwnew wwmeasure wwwas wwused. ww- wwAnswer wwInstrumentation
Which wwof wwthe wwfollowing wwis wwa wwproposed wwadvantage wwof wwthe wwwithin-
subjects wwdesign? ww- wwAnswer wwReduced wwvariability wwdue wwto wwindividual
wwdifferences
A wwwithin-subjects wwdesign wwhas ww5 wwconditions. wwThe wwresearcher wwwishes wwto
wwuse wwcomplete wwcounterbalancing wwand wwhave ww10 wwparticipants wwfor wweach
wworder. wwHow wwmany wwparticipants wwwould wwbe wwrequired? ww- wwAnswer ww1200
A wwresearcher wwwishes wwto wwidentify wwthe wwcausal wwrelationship wwbetween
wwalcohol wwuse wwand wwmotor wwvehicle wwdriving wwability wwusing wwa wwsimulator.
wwThe wwsimulator wwis wwonly wwavailable wwfor wwone wwday, wwallowing wwa wwmaximum
wwof wwtwo wwsessions wwper wwparticipant. wwWhich wwof wwthe wwfollowing wwdesigns
wwwould wwbe wwbest? ww- wwAnswer wwRepeated wwmeasures wwwithout
wwcounterbalancing wwand wwtwo wwgroups
Scenario: wwDr. wwMathurin wwwanted wwto wwunderstand wwwhether wwstudents
wwengagement wwin wwsocial wwmedia wwhad wwchanged wwsince wwthe wwCOVID
wwpandemic wwand wwwhether wwthis wwwas wwrelated wwto wwtheir wwmental wwhealth. wwHe
wwfollowed wwthree wwHPS301 wwcohorts ww(2019, ww2020 wwand ww2021), wwmeasuring
, wwtheir wwsocial wwmedia wwusage wwand wwmental wwhealth wwat wwthe wwbeginning wwof
wwtrimester, wwmid wwtrimester wwand wwat wwthe wwend wwof wwtrimester.
1) wwThe wwresearch wwdesign wwdescribed wwin wwthis wwscenario wwwould wwbe wwbest
wwcategorised wwas wwa: ww- wwAnswer wwlongitudinal-sequential wwquasi-experiment
Scenario: wwDr. wwMathurin wwwanted wwto wwunderstand wwwhether wwstudents
wwengagement wwin wwsocial wwmedia wwhad wwchanged wwsince wwthe wwCOVID
wwpandemic wwand wwwhether wwthis wwwas wwrelated wwto wwtheir wwmental wwhealth. wwHe
wwfollowed wwthree wwHPS301 wwcohorts ww(2019, ww2020 wwand ww2021), wwmeasuring
wwtheir wwsocial wwmedia wwusage wwand wwmental wwhealth wwat wwthe wwbeginning wwof
wwtrimester, wwmid wwtrimester wwand wwat wwthe wwend wwof wwtrimester.
In wwthis wwscenario wwDr. wwMathurin wwwas wwconcerned wwthat wwthe wwstudents wwmay
wwdeliberately wwreduce wwtheir wwsocial wwmedia wwuse wwif wwthey wwbecame wwaware wwof
wwthe wwstudies wwpurpose wwand wwin wwdoing wwso wwthreaten wwthe wwvalidity wwof wwhis
wwfindings. wwThis wwthreat wwwould wwbe wwbest wwdescribed wwas: ww- wwAnswer
wwreactivity
One wwmain wwdifference wwbetween wwbivariate wwcorrelation wwand wwbivariate
wwregression wwis: ww- wwAnswer wwBivariate wwcorrelation wwdescribes wwthe wwrelationship
wwbetween ww2 wwvariables, wwwhereas wwbivariate wwregression wwallows wwus wwto
wwmake wwpredictions
Correlations wwcan wwbe wwreduced wwby: ww- wwAnswer ww-A wwsample wwwhich wwdoes
wwnot wwinclude wwa wwwide wwspread wwof wwscores
-Having wwsome wwextreme wwscores
-A wwsample wwconsisting wwof wwdistinct wwsubgroups
-When wwusing wwa wwyes/no wwresponse, wwhaving wwmost wwrespondents wwchoosing
wwno
A wwPearson's wwcorrelation wwof wwr ww= ww0 wwindicates wwthat: ww- wwAnswer wwOur wwtwo
wwvariables wware wwnot wwlinearly wwrelated
Variable wwB wwis wwpositively wwskewed. wwDr wwSmith wwuses wwa wwlog wwtransformation
wwwhich wwresults wwin wwa wwnegatively wwskewed wwdistribution ww(log wwB). wwWhat
wwshould wwshe wwtry wwnext? ww- wwAnswer wwSquare wwroot wwtransformation wwof
wwvariable wwb
Scenario: wwAndy wwconducts wwsome wwsurvey-based wwresearch wwon wwa wwgroup wwof
wwYear ww12 wwstudents wwto wwsee wwwhat wwis wwrelated wwto wwtheir wwacademic
wwsuccess. wwThe wwmeasures wwin wwher wwsurvey wwinclude wwage ww(AGE), wwnumber
wwof wwhours wwspent wwstudying wwper wwweek ww(STUDYING), wwnumber wwof wwhours
wwusing wwsocial wwmedia wwper wwweek ww(SOCIAL wwMEDIA), wwa wwmental wwhealth
wwscale ww(MHEALTH), wwtheir wwacademic wwrank wwin wwYear ww11 ww(RANK), wwhow
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