At the scientific level, clinical trials have traditionally involved predominantly white, human subjects, yet subsequent diagnostic tests and procedures have been used across age, racial and ethnic groups (Johnson & Smith, 2002). Likewise, screening tools such as the CES-D are often found to display systematic differences across racial/ethnic groups in how individuals respond to items (Kim, Chiriboga & Jang, in press). In addition, age-related differences have also been reported in response to commonly used questionnaires to assess the cognitive functioning of older persons, using such screening tests as the Mini Mental State Examination, where increasing age and associated variables are related to poorer performance in the absence of any significant cognitive impairment (e.g., Crum, et al., 1993). For additional information on issues related to psychological assessment of older adults, see the guidelines 10-12 in the Guidelines for Psychological Practice with Older Adults (http://www.apa.org/practice/adult.pdf) Assessment of Older Adults with Diminished Capacity: A Handbook for Psychologists, Appendices B-F