ATTEMPTED TO DETERMINE THE AMOUNT OF COUNSELING RECEIVED FROM CAMPUS SOURCES BY SS IN THE CONTROL GROUPS OF A GROUP COUNSELING EXPERIMENT. 5 GROUPS OF COLLEGE FRESHMEN UNDERACHIEVERS WERE USED. 2 GROUPS RECEIVED EXPOSURE TO GROUP PROCEDURES, AND 3 GROUPS SERVED AS CONTROLS. AT THE END OF THE WINTER AND SPRING TERMS, QUESTIONNAIRES DESIGNED TO ESTABLISH THE AMOUNT OF COUNSELING RECEIVED WERE MAILED TO ALL SS. CAMPUS SOURCES OF COUNSELING WERE CONTACTED TO SEE IF ANY CONTACT HAD BEEN MADE WITH GROUP MEMBERS. IT WAS FOUND THAT SEVERAL SS IN EACH OF THE GROUPS RECEIVED COUNSELING WHICH WOULD NORMALLY BE UNKNOWN TO THE INVESTIGATOR AND WHICH COULD POSSIBLY DISTORT EXPERIMENTAL EVIDENCE. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1968 American Psychological Association.