Researchquestionandhypothesis1ENGLISHLANGUAGESUPPORT|DEPARTMENTOFSTUDENTSERVICES|RYERSONUNIVERSITYTheResearchQuestionandHypothesisThisisthequestionthatyouaretryingtoanswerwhenyoudoresearchonaWhatisaresearchtopicorwritearesearchreport.question?Itshouldbeasspecificaspossible.Insomecases,youmaymaketwoormoreShouldaresearchresearchquestionstocoveracomplextopic.questionbegeneralorspecific?Forexample,ifyouarestudyingtheeffectsofsleeponreflexes,youmightWhatisanformulatethefollowingresearchquestion:exampleofaresearchWhataretheeffectsofsleeponreflexes?question?Asimilarquestionmightbe:Doessleephaveaneffectonreflexes?Or:Ismaximumreflexefficiencyachievedaftereighthoursofsleep?Thegoalofyourresearchistofindtheanswertotheresearchquestion.Ahypothesisisastatementthatcanbeprovedordisproved.AresearchquestionWhatisacanbemadeintoahypothesisbychangingitintoastatement.Forexample,thehypothesis?thirdresearchquestionabovecanbemadeintothehypothesis:Maximumreflexefficiencyisachievedaftereighthoursofsleep.Anullhypothesis(abbreviatedH)isahypothesistobedisproved.TheWhatisanull0hypothesisabovecanbeturnedintoaworkingnullhypothesissimplybyaddinghypothesis?“not”.Maximumreflexefficiencyisnotachievedaftereighthoursofsleep.Anothernullhypothesisis:Sleepdoesnothaveaneffectonreflexes.Nullhypothesesareusedinthesciences.Inthescientificmethod,anull2ENGLISHLANGUAGESUPPORT|DEPARTMENTOFSTUDENTSERVICES|RYERSONUNIVERSITYhypothesisisformulated,andthenascientificinvestigationisconductedtotrytodisprovethenullhypothesis.Ifitcanbedisproved,anothernullhypothesisisconstructedandtheprocessisrepeated.Asanexample,wemightbeginwiththenullhypothesis:Sleepdoesnotaffectreflexes.Ifwecandisprovethis,wefindthatsleepdoeshaveaneffect.Wemightthengotothenextnullhypothesis:Differentamountsofsleephavethesameeffectonreflexes.Ifwecandisprovethis,wecangoto:Maximumreflexefficiencyisnotachievedaftereighthoursofsleep.Andsoon.Ateachstageintheinvestigation,weconductexperimentsdesignedtotrytodisprovethehullhypothesis.Ageneralizedformofthefinalhypothesis(notthenullhypothesis)canbeusedasWhatistheathesisstatement.Forexample,ifourfinalprovedhypothesisis:relationshipbetweenthenullMaximumreflexefficiencyisachievedaftereighthoursofsleephypothesisandthethesiswemightgeneralizethistoathesisstatementsuchas:statementofaresearchreport?Thisinvestigationdemonstratedthatsleephasaneffectonreflexefficiencyandthat,infact,maximumreflexefficiencyisachievedafteraspecificperiodofsleep.
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