One Study Found That the Proportion of Anger-Related Words in 148

question 120

Multiple Choice

One study found that the proportion of anger-related words in 148 million tweets from 1347 U.S.counties predicted the counties' heart disease rates.This research best illustrates the use of

• A) a case study.
• B) experimentation.
• C) a survey.
• D) naturalistic observation.

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