Correlational Analysis

Correlational Analysis

1. Evaluation

   • Low internal validity - confounding varables
   • High external validity - measures confounding variables
   • Low reliability - confounding variables
   • Can't establish cause and effect
   • Possible demand characteristics

2. Correlation coefficients

   • 0.00 correlation = weakest correlation
   • Between -1 and +1
   • 0.99- = strongest negative correlation
   • 0.99+ = strongest positive correlation

3. Confounding variables

   • Factors which can affect the result of a study but that we haven't measured/ controlled