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Public Health Workforce Training
Link to beginning section of Introduction to Qualitative Research

Key Features of Qualitative Research

A choice between research methods rests fundamentally on a set of decisions about the questions a researcher wants to answer and the practicality of gathering the kind of data that will answer those questions.

Generally speaking, some key features of qualitative research include:

  • Answers “how?” and “why?” For example, how do overweight adults make food choices based on calorie-labeling at fast food restaurants?
  • Gathers open-ended and textual data
  • Collects data by asking and observing
  • Produces information about:
    • How people feel about situations
    • How things are done (for example, procedures)
    • How people or organizations behave

Whereas, some key features of quantitative research are:

  • Answers “how many?” “when?” “where?” For example, does the strength of relation between amount of daily aerobic exercise and blood pressure differ for male and female adults?
  • Gathers numerical data
  • Collects data through surveys, logs, forms, etc.
  • Analyzes numeric information to:
    • Classify and count a characteristic(s)
    • Construct statistical models to explain observations