1. Department of Health Sciences University of York York UK
2. Department of Psychology, Centre for Family Research University of Cambridge Cambridge UK
3. Research Department of Clinical, Educational and Health Psychology UCL London UK
4. Department of Psychology University of York York UK
5. Prevention Science Institute University of Oregon Eugene Oregon USA
6. Department of Psychology University of Pittsburg Pittsburgh Pennsylvania USA
7. Department of Psychological and Brain Sciences George Washington University Washington District of Columbia USA
8. Department of Psychology University of California Riverside California USA
9. Department of Psychology The Pennsylvania State University University Park Pennsylvania USA
10. Yale Child Study Center Yale School of Medicine New Haven Connecticut USA