Longitudinal vs. cross-sectional studies

A company manufactures thermometers, and they want to study the relationship between a thermometer's age and its accuracy. To do this, they take a sample of 100 different thermometers of different ages and test how accurate they are. Is this data longitudinal or cross-sectional?

Answer the question
50 XP
Possible Answers
  • press
  • press
  • press
  • press