临床数据分析员英语考试题及答案.docxVIP

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临床数据分析员英语考试题及答案

Part1:Vocabulary(10题,每题2分，共20分)

Instructions:Choosethebestwordtocompleteeachsentence.

1.Theclinicaltrialdatamustbe__________toensureaccuracyandreliability.

A)validated

B)documented

C)standardized

D)analyzed

→Answer:A)validated

→Explanation:Inclinicaldataanalysis,validationreferstoverifyingtheaccuracyandconsistencyofdatathroughchecksandcross-references.

2.The__________phaseinvolvescollectingandorganizingrawdatabeforestatisticalanalysis.

A)cleaning

B)processing

C)validation

D)interpretation

→Answer:B)processing

→Explanation:Processingincludessorting,structuring,andpreparingdataforanalysis,whichisakeystepbeforestatisticalmodeling.

3.A__________erroroccurswhenthedataentrydiffersfromtheoriginalsource.

A)systematic

B)random

C)typographical

D)sampling

→Answer:C)typographical

→Explanation:Typographicalerrorsarecommoninmanualdataentry,suchasmisspellingsorincorrectnumbers.

4.The__________isameasureofhowcloselydatapointsclusteraroundthemean.

A)variance

B)standarddeviation

C)median

D)mode

→Answer:B)standarddeviation

→Explanation:Standarddeviationquantifiesthedispersionofdata,indicatingthedegreeofvariability.

5.__________biasoccurswhenthestudysampledoesnotrepresentthegeneralpopulation.

A)Selection

B)Measurement

C)Sampling

D)Processing

→Answer:A)Selection

→Explanation:Selectionbiasariseswhenparticipantsarenotrandomlychosen,affectinggeneralizability.

6.Theterm__________referstotheprocessofidentifyingandcorrectingerrorsindata.

A)imputation

B)cleaning

C)transformation

D)normalization

→Answer:B)cleaning

→Explanation:Datacleaninginvolvesdetectingandfixinginaccuraciestoimprovedataquality.

7.A__________isastatisticalmethodusedtoestimatetherelationshipbetweenvariables.

A)regression

B)correlation

C)ANOVA

D)t-test