Reflecting the primary interest of the NSW - CDS in
identifying childhood predictors of later mental health and related outcomes, 5 the MCS
items focused on the assessment of social and emotional - behavioural competencies that are typically attained during middle childhood1 2 and which have been demonstrated as predictive of various adolescent and adulthood health and social outcomes.3 4 7 These competencies include establishing and maintaining
positive social relationships, understanding and appreciating the perspectives of others, recognising and managing emotions and behaviours and the development of personality and self - esteem.