Patricia Crittenden, Ph.D. is the Developer of the Dynamic-Maturational Model (DMM) of attachment and adaptation. Faculty of Psychiatry, Dalhousie University, Halifax, NS. Author, The Organization of Attachment Relationships: Maturation, Culture, and Context; Raising Parents: Attachment, Parenting, and Child Safety; The Adult Attachment Interview: Assessing Psychological and Interpersonal Strategies, Attachment and Family Systems Therapy.