title: A NOTE ON THE EFFECT OF SELECTIVE SAMPLING PROCEDURES ON THE PHI COEFFICIENT.
abstract: A general equadion is presented, covering all arbitrary values for the true population splits, for obtaining the true population phi, given observed cell frequencies for a selected sample, and true population splits. A nongeneral solution is also offered, based on the use of the G Index. Demonstrations with hypothetical data are given.
authors.forename: J W
authors.initials: JW
authors.lastname: Holley
authors.forename: U
authors.initials: U
authors.lastname: Eriksson