Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDifferentiating between the statistical and substantive significance of ESP phenomena: Delta, kappa, psi, phi, or it's not all Greek to me.AuthorsCicchetti, Domenic V.PublicationBehavioral & Brain Sciences, 1987, Vol 10, Issue 4, p577ISSN0140-525XPublication typeArticleDOI10.1017/S0140525X00054613