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优选词,正式主题词

LongitudinalLongitudinal  

定义

  • Data collected repeatedly over time to allow studying change in a population. At least some of the questions or modules are repeated over waves. Use the broad term when none of the subterms is suitable.

其它语言

URI

http://rdf-vocabulary.ddialliance.org/cv/TimeMethod/1.2/d9d4936

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