Which is correct:
"data were collected" or "data was collected"?

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data were collected

This phrase is correct when referring to data as a plural noun.

Use 'data were collected' when you are treating data as individual pieces or units that were gathered or obtained.

Examples:

  • The data were collected from various sources.
  • These data were collected over a period of six months.

Alternatives:

  • The collected data
  • The data that were collected
  • The data have been collected
  • The data have been gathered
  • The data were gathered

data was collected

This phrase is correct when treating data as a singular mass noun.

Use 'data was collected' when you are considering data as a collective whole that was gathered or obtained.

Examples:

  • The data was collected and analyzed.
  • This data was collected for research purposes.

Alternatives:

  • The collected data
  • The data that was collected
  • The data has been collected
  • The data has been gathered
  • The data was gathered
Both phrases are correct, but they are used in different contexts. 'Data were collected' is used when referring to data as a plural noun, while 'Data was collected' is used when treating data as a singular mass noun. The choice between the two depends on whether you are considering the data as individual pieces or as a collective whole.

Last updated: March 25, 2024

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