A statistical method for examining the relationship between a dependent variable and one or more independent variables. It helps predict outcomes and understand how much each predictor variable contributes to the outcome.
The term 'regression' was coined by Francis Galton in 1886 when studying heredity, observing that extreme traits 'regressed' toward the mean. The statistical technique was formalized by Galton and Pearson, becoming a cornerstone of psychological research methodology.
It's like having a crystal ball that tells you not just what will happen, but which factors matter most! Regression can reveal that studying time predicts grades more than intelligence, or that sleep quality trumps caffeine for performance.
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