Infants' emerging communication skills are understood to be associated with the maternal relationship, particularly for children experiencing high levels of social risk. This study attempts to determine the extent to which this association is influenced by (a) the mental health risk of the dyad and (b) different operational definitions and measurement of both the dyadic relationship and the construct of "communication." Ninety-six infants (10-30 months) and their mothers were recruited: A total of 46 were at-risk dyads referred to a mental health clinic for relationship-based emotional and/or behavioral Melanie A. Barwick is Psychologist in the Community Health Systems Resource, Hospital for Sick Children, Associate Scientist, Hospital for Sick Children Research Institute, and Assistant Professor, Department of Psychiatry and Department of Public Health Sciences, University of Toronto. Nancy J. Cohen is Director of Research at the Hincks Institute and is with the Department of Psychiatry, University of Toronto, and Department of Psychology, York University. Mirek Lojkasek is with the Department of Psychiatry, University of Toronto and is both a private practitioner and a Staff Psychologist at the Hincks Institute. Naomi B. Horodezky is a speech-language pathologist in private practice and speech-language consultant for the Hincks Institute. This research was supported by a grant to Melanie A. Barwick from the Health Canada National Health Research Development , and a grant to Nancy J. Cohen and Elisabeth Muir from the Health Canada National Health Research Development Program (6606-4431). Melanie A. Barwick was supported by consecutive postdoctoral awards from the Social Science and Humanities Research Council of Canada, and from the Health Canada National Health Research Development Program. Additional career support was provided to Dr. Barwick by the Carr-Harris Foundation, The George Hull Center for Children and Families, and the Hospital for Sick Children during the preparation of this article. The authors thank the clients of the Hincks Institute for their contribution, and acknowledge research collaborators Elisabeth Muir, Roy Muir, and Carol Jane Parker. The authors also thank Nancie Im, Myrna Brown, Claire Millar, and Samantha Callendar for providing project coordination and research assistance, Lennox White for audiovisual assistance, Susan Goldberg and Jane Washington for coding the Strange Situation videotapes, Kary Kublin for coding the CSBS protocols, and Zohreh Yagoubzadeh for assistance with the statistical analysis. Direct correspondence to: Melanie A. Barwick, Psychologist and Associate Scientist, Community Health Systems Resource Group, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada; e-mail: melanie.barwick@sickkids.ca.
Infant Communication •
241difficulties, and 50 were nonrisk dyads not seeking mental health services and served as a normative reference or comparison group. Several factors were assessed: (a) developmental competence, (b) matern...