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The data, which are collected from the individual respondents for the purpose of certain study is known as :

  • A.Primary
  • B.Secondary
  • C.Tertiary
  • D.Biased

Answer: A

Such data are primary data.

Primary data are collected first-hand by the researcher from the respondents for the specific purpose of the study, through interviews, questionnaires, observation or experiments.

Secondary data were collected by someone else for another purpose and are reused, such as census figures or published reports. 'Tertiary' refers to compilations of secondary sources, and 'biased' describes a flaw in data, not a type.

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