Theory-based intervention for dementia behaviors: a within-person analysis over time.

The historic "black-box" approach to treatment effectiveness research has hampered the development of effective activity interventions for persons with dementia. The purpose of this case study is to test the effectiveness of activities derived from the Need-Driven Dementia-Compromised Behavior Model. Activities that matched skill level and personality style of interest resulted in a pattern of greater time on task (p =.0012), participation (p =.004), and positive mood (p =.0001) and fewer dementia-related behaviors (p =.009) compared with activities matched to skill level only. Practitioners may improve behavioral outcomes for persons with dementia by prescribing activities based on an assessment of skill level and style of interest. Copyright 2002, Elsevier Science (USA). All rights reserved.