The Cognitive Orientation to Occupational Performance (CO-OP) Approach will be delivered over 10 30-60 minute sessions over a seven week period as follows: 2 sessions/week for 3 weeks, then 1 session per week for 4 weeks. In the CO-OP intervention participants are first assisted to identify 3-5 occupation based goals which will be the focus of the intervention sessions. Over the course of the 10 intervention sessions, participants are guided to learn and practice problem solving using a metacognitive strategy, "Goal-Plan-Do-Check" applied to their self-identified goals. Study therapists use 'guided discovery' an iterative technique to facilitate problem solving by the participant to develop plans to work toward their goals and to evaluate their progress. Intervention takes place in the location that is most meaningful for the participant's selected goal (e.g. home, school, playground etc.). Participants are provided with a work book to track progress.

In the CO-OP intervention participants are first assisted to identify 3-5 occupation based goals which then become the focus of the intervention sessions. Over the course of the 10 intervention sessions, participants are guided to learn and practice problem solving using a metacognitive strategy, "Goal-Plan-Do-Check" applied to their self-identified goals. Study therapists use 'guided discovery' an iterative technique to facilitate problem solving by the participant to develop plans to work toward their goals and to evaluate their progress. Intervention takes place in the location that is most meaningful for the participant's selected goal (e.g. home, school, playground etc.). Participants are provided with a work book to track progress.

A change score of two points is considered clinically significant (McColl, Carswell, Law, Pollock, Baptiste, & Polatajko 2006). During a semi-structured interview, clients are asked to identify a minimum of five occupational performance issues (OPI's). The five most important OPI's as determined by the client are identified using a ranking scale (1=not important at all to 10=extremely important) and then ranked according to performance and satisfaction with performance using 10 point scales (Performance score of 1=not able to do it to 10=able to do it extremely well; Satisfaction score of 1=not at all satisfied to 10=extremely satisfied).

The Beck Youth Inventories for children and adolescents-Second Edition (BYI-II) (Beck, Beck, Jolly, & Steer, 2005) provides insight into youth's negative thoughts about their self, life and future, and feelings of sadness, worry, guilt, anger, disruptive behaviors and self-worth. The depression, anxiety and anger inventories were administered. Higher scores are associated with negative affect. Psychometric properties are strong with high internal consistency (Cronbach's alpha coefficients from .91-.96) and test-retest reliability (r=.83 to .93).