Assessing the Supportiveness of Healthcare Environments' Light and Color: Development and Validation of the Light and Color Questionnaire (LCQ).

Aim: The aim of this study was to develop and evaluate a self-report instrument measuring patients', family members', and staff's perceived support from light and color in the physical environment of an emergency department (ED)-the Light and Color Questionnaire (LCQ).

Background: The physical care environment is an important part of a comprehensive caring approach in all levels of care not only for patients but also for family members and staff. However, no existing self-report questionnaire assessing the extent to which light and color are perceived as being supportive in the physical care environment from the users' perspective was found.