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Is 'Data' Singular or Plural?

Question
When discussing whether or not a set of data indicates a particular outcome, which form is correct: "the data don't" or "the data doesn't" indicate that outcome? — Richard C., United States
Answer

Technically, "data" is a plural noun—it is the plural form of the noun "datum." However, it is used with both singular and plural verbs.

  • The data show a decrease in visitors to state parks.
  • The data shows a decrease in visitors to state parks.

 

When it is used with a singular verb it is being treated as a noncount noun, like "information." Some people consider the use with singular verbs to be incorrect or informal, but it is entirely standard.

  • The data is accurate.

 

A plural verb should be used with "data" in formal and technical writing such as in scientific writing.

  • The data are being recorded.

 

So then, in formal, academic, or scientific writing you should write "the data don't indicate…"

 

I hope this helps.

 

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