Background: Family involvement in youth care and special education is referred to as family-centered practice (FCP). Research on FCP, for example in relation to the effectiveness of youth care and special education, is challenged by a lack of validated instruments that measure youth professionals' family-centered attitudes and actions that is…

Psychometric and utility studies on Social Emotional Assessment Measure (SEAM), an innovative tool for assessing and monitoring social-emotional and behavioral development in infants and toddlers with disabilities, were conducted. The Infant and Toddler SEAM intervals were the study focus, using mixed methods, including item response theory…