The specific aims of this study are to: (1) Evaluate the efficacy of the novel MAPSS-MS cognitive rehabilitation intervention to improve overall neuro-cognitive competence in activities of daily living including verbal memory performance, use of compensatory cognitive strategies and performance on cognitive-related instrumental activities of daily living (IADL) among persons with MS; (2) Evaluate the efficacy of the MAPSS-MS intervention to improve self-efficacy and related aspects of cognitive performance (non-verbal learning/memory, information processing speed and attention, verbal fluency and complex scanning and tracking) among persons with MS; and (3) Determine the number of intervention participants who achieve and maintain their self-identified cognitive goals three and six months following the intervention. The effects of the intervention on outcome variables will be assessed using a randomized controlled trial design with a comparison group receiving usual care computer games. Measurements of study variables will occur at baseline, immediately after the MAPSS-MS intervention, and three months and six months after the intervention is complete. Statistical analysis will include descriptive statistics and HLM analysis to account for the nested design. The intent-to-treat approach will be used.