Participants in this open-label study will be randomly assigned to receive 12 sessions of either CM or CM-PST. Both treatments will be delivered at the participant's home by a trained case worker. Participants assigned to receive CM will focus on increasing their resources and reducing adversity. The case worker will help participants determine the causes of their unmet needs, create an action plan to meet those needs, encourage the use of services, and possibly advise their family members and health care providers to help facilitate the use of those services. Participants assigned to CM-PST will undergo a needs assessment during the first session to develop a problem-solving plan that will be implemented over the next 11 sessions. Each session will include instruction on how to use the PST approach to solve problems identified by both the therapist and participant. All participants will undergo a neuropsychological exam and complete psychological and physical functioning questionnaires prior to treatment and at Weeks 3, 6, 12, and 24.