This chapter demonstrates how the Matthews Model of Clinical Reasoning (MMCR) guides the evaluation and intervention plan for a 27-year-old male. Jacque currently attends a local adult day program serving adults with intellectual disabilities. The occupational therapy practitioner used the Wellness Self-Inventory Evaluation as the occupational profile to gather information about his story and the COTE scale as the analysis of performance. Using the Wellness in Eight Dimensions and the behavioral frame of reference as a guide, interventions will take place in Jacque’s group home and day program, as well as around the community. Jacque will be seen for occupational therapy services (group and individual) five times a week for six months as part of the services at the day program.