Social Marketing
Nutrition and Physical Activity


Step 3: Choose Data Collection Method(s)

The third step is to choose data collection methods to answer your research questions.

Two overarching factors will determine which method is best

  • How reliable and valid results should be.
  • How much money and time you can spend.

There is always a tension between how reliable and valid you can be and how much you will spend. High reliability and validity usually equals high cost, and vice versa. You have to choose the best method you can with the resources you have.

photo of people walking down steps at universityLimited Resources?Limited Resources?

If you don't have a lot of money for this phase, see if you can partner with a university or get work donated by a private firm. If not, see what you have the capability to do on your own or with the help of your partners or colleagues.