The effects of multiple sclerosis (MS) on cognition, thought to occur in 50-75% of persons with MS, have gained increasing recognition as one of the major disabling symptoms of the disease. While numerous studies have addressed the emotional and physical impact of MS, little attention has been given to strategies that might help manage the cognitive changes commonly experienced by persons with MS. The proposed study will test a novel computer-assisted cognitive rehabilitation intervention, MAPSS-MS (Memory, Attention, & Problem Solving Skills for Persons with MS). The MAPSS-MS integrates the powerful effects of group interventions to build self-efficacy for new cognitive compensatory strategies/behaviors with individual home-based computer-assisted training. The computer training will assist individuals to develop cognitive skills that they can apply to everyday life using the compensatory strategies learned in the class sessions. In the recently completed exploratory study with 61 persons with MS (R21NR011076), the eight-week MAPSS-MS intervention was acceptable and feasible and had medium to large effects on the use of compensatory strategies and performance on neuropsychological tests of verbal memory. The proposed study will test the refined MAPSS-MS intervention with a larger more diverse sample (N=180) across multiple sites, extend the period of post-intervention follow-up to 6 months and establish whether performance improvements on neuropsychological tests make the important transfer to improved neuro-cognitive functioning in everyday life.