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1、调查1,Selectivesample:样本选择，一部分被排除在外Onemajorproblemisaboutthesampletheauthorstudiedinthesurvey.Theauthorconsidersonly(selectivesub-groups)althoughtheyplayasignificantrole,however,(manyothersub-groups),whoseattitudeisalsoimportant,areactuallyexcludedfromthesurvey.2,Qua
2、ntityofthesample样本数量Pointingoutthatthecurrentsampleistoosmallinitssizecouldhardlyillustratetheassumptionthat...Thefactcitedbytheauthorcouldhardlyillustratetheassumptionthat...becausetheauthorprovidesonlyafewsamplesmightnotberepresentativeofthecompletelygeneralgroup
3、.3,Dothestatisticsmakeanydifference:调查只调查了部分情况，忽略了一部分Thesurveyonlystudiesthesituationof...;however,manyothermoreessentialcasesabout…wereignoredinthesurvey.5,Whoconductedthesurvey:结果扭曲，调查者为了自己的利益Thereliabilityofthesurveyisalsoopentodoubtdueto(Theorganization)whocond
4、uctedthesurvey.Itsconflictofinterestintheresultofthesurveymightdistorttheactualanswersoftherespondents.Thus,theauthorshouldciteasurveythatisconductedbyanindependentinstitution.6,Whenwasthesurveyconducted:时间变化Thesurveywasconduct(duringaspecialperiod,oralongtimeago).
5、Itistruethatthesurveymayreflecttheopinions/situationsof(respondents)atthetimewhenitwasconducted,butsituationof/people’sopinionmayhavechangedgreatlyduringthepasttime.7,Vaguedata:数据模糊—没有基数Theauthoronlyinformsusthat(thepercentage/fractionofsub-groups),butwedonotknowth
6、ebaseamountof(thegeneralgroup).Ifthebaseamountwerelow,theconclusionwouldbedifferent.8,Incompleteinformation:数据不完整Theauthoronlyinformsusthat...butwhatwecaremoreaboutisthat...whichisnotprovidedbytheauthor.9,Aretherespondentsforthrightwhenansweringthequestions:回答者不真实T
7、hereispossibilitythattherespondentsmaynottellthetruthabout…becauseanswering5thequestionshonestlymayleadto(undesirableconsequences)forthem.Undersuchcircumstances,itisalmostimpossibleforustoexpecttherespondentstoprovideaccurateinformationabouttheiropiniontoward...10,
8、Aretherespondentsrepresentative:回答者没有代表性Weshouldalsonoticethattherespondentsstudiedinthesurveymaynotrepresentthegeneralgroupof...Weallknowthatinm
