The purpose of this study is help people with serious mental illness and receiving vocational rehabilitation get and keep the job they want by improving their thinking skills, such as attention and memory, using computer exercises and other strategies. One half of the participants in the study will receive vocational rehabilitation and the exercises to improve thinking skills, and the other half will receive just vocational rehabilitation. All participants will receive an assessment of symptoms and thinking skills at the beginning of the study and 6, 12, and 24 months later. Work activity during the 24 months in the study will be collected. It is expected that those participants who receive the practice of their thinking skills will be more likely to get and keep the job they want compared with people who do not receive this treatment.

This randomized controlled trial is evaluating the effectiveness of a pilot-tested, manualized cognitive remediation intervention entitled the "Thinking Skills for Work Program" by comparing it to enhanced supported employment services in clients with severe mental illness (SMI) who are participants in high fidelity supported employment programs at the Greater Mental health Center of Manchester and Thresholds, Inc., Chicago, Il, but who have had difficulty getting or keeping jobs. Participants are randomized to either the Thinking Skills for Work (cognitive remediation +supported employment; CT+SE) or enhanced supported employment (E-SE), with cognitive, symptom, and quality of life assessments performed at baseline, 3 months (following the completion of the computerized cognitive training component of the Thinking Skills for Work program), 12 months, and 24 months, and employment data gathered over the full 2-year period. For the E-SE condition, supported employment services are enhanced by training provided to the employment specialists regarding to recognize cognitive problems related to work performance, and how employment specialists can teach clients coping strategies for managing these problems. Primary analyses will focus on testing the hypotheses that the Thinking Skills for Work Program (CT+SE) leads to better cognitive functioning and better competitive work outcomes over the 2-year follow-up period compared to the E-SE program.

Inclusion Criteria:

• Chronic mental disorder
• Minimum age 18
• Unemployed
• Wants employment
• Must be a recipient of services at one of two participating agencies
• Fluent in English
• Willing and legally able to provide informed consent to participate in study -Subjects with court appointed legal guardians will be included

Exclusion Criteria:

• History of neurological conditions that impair cognition