(5) 0.4 Correlation Methods

  • Quantitative Research

    • Use numerical data

  • Qualitative Research

    • Rely on in-depth, narrative data

  • Correlation

    • Relationship between 2 variables

  • Correlation Coefficient

    • Measure the strength of the relationship between 2 variables

    • Represented by r

    • Strong: predictable (-1 or 1)

    • Weak: less predictable

    • Correlation does not equal causation

  • Illusory Correlation

    • The perception of a relationship where no relationship exists

  • Third Variable Problem

    • The possibility that a 3rd, unmeasured variable may be influencing the relationship