User:Alonefarmer/Books/Studying Method

Experimantal vs Observational

 * Knowledge
 * Knowledge


 * Research
 * Research


 * Scientific Methods
 * Scientific method


 * Experimental Study
 * Experiment
 * Field experiment
 * Natural experiment


 * Observational Study
 * Observational study
 * Case-control study
 * Cross-sectional study
 * Longitudinal study
 * Cohort study
 * Ecological study