Failure to Replicate a QTL Association between a DNA Marker Identified by EST00083 and IQ STEPHENA.PETRILL DAVIDBALL THALIAELEY LINZY HILL ROBERTPLOMIN Social, Genetic, and Developmental Psychiatry Research Centre, Institute of Psychiatry, London GERALDE.MCCLEARN DEBORAHL.SMITH The Pennsylvania State University KARENCHORNEY MICHAEL~HORNEY MILTONS.HERSHZ The Pennsylvania State University Medical Center DOUGLAS K.DETTERMAN LEEA.THOMPSON Case Western Reserve University CAMILLABENBOW DAVIDLUBINSKI Iowa State University Direct all correspondence to: Dr. Stephen A. Petrill, Judd Hall, Wesleyan University, Middletown, CT, 06459 <spetrill@wesleyan.edu>. INTELLIGENCE Z(3): 179- 184 Copyright 0 1998 by Ablex Publishing Corporation ISSN: 0160-2896 All rights of reproduction in any form reserved. 179