Rethinking needs assessment in planning services for older adults.

Needs assessments are widely used in the field of aging, and are considered valuable tools for planning service responses to unmet and undermet needs of older adults. This article describes a comprehensive needs assessment of Bermuda's older population and presents some of its findings to illustrate concerns about needs assessments that emerged from this experience. We suggest that even when needs assessments are carefully planned and adhere to generally recognized best practice principles, they may not be able to fully provide desired information. A revision of key assumptions about needs assessment is offered for researchers, planners, and community workers.