1. Department of Psychology, University of Oregon, Eugene, OR, 97403-1227
2. Department of Pediatrics, Children's Hospital Medical Center, Cincinnati, OH 45229
3. Law School, University of Southern California, Los Angeles, CA 90089
4. Family Research Laboratory, University of New Hampshire, Durham, NH 03824
5. Department of Political Science, Brown University, Providence, RI; 02912
6. NBS Associates, Columbia, MD 21046
7. Department of Psychology, Claremont Graduate University, Claremont, CA 91711, USA.