2.2 Sources of Data

  • Primary: Obtained directly (not collected from someone else)

  • Secondary: Using pre-collected data from someone else/some organization

Example (Guess Types)

  • A researcher buys data from BMD to build a model of rainfall behavior
  • A researcher runs an experiment to measure speed of light using a novel technique.
  • A researcher makes use of the data generated by the one in example 2