Vive la Différence (P<0.05)

Abstract

Francis Galton was sheltering from a brief summer shower in the grounds of Naworth Castle when suddenly the true nature of correlation flashed into his mind, and for a moment he forgot everything else in his "great delight."¹ Thus was the correlation coefficient, r, conceived, its public birth being before the Royal Society in December of that year, 1888.² Few researchers have shared in the mathematical ecstasy of this inventive statistician, but most of us have, with differing degrees of reluctance, buckled down to learning about α, β, P, F, z, t, and the like, recognizing . . .