"The purpose of the present study was to determine if there were any significant changes upon retest in a group of children who were judged as not doing their best upon the original infant test." Data show that the clinical judgment of the psychologists involved in this study was sound when they stated that further testing was necessary for some infants who did not appear to be doing their best. "Evidence seems to support the conclusion that all possible information concerning not only test results but the conditions surrounding the test and full case histories are necessary for adequate competence in the prediction of infant intelligence. (PsycINFO Database Record (c) 2006 APA, all rights reserved)