The osteoporosis risk assessment tool: establishing content validity through a panel of experts.

Twenty-three items were initially developed for the Atkins Osteoporosis Risk Assessment Tool (ORAT) after a thorough examination of the literature. These items were reviewed for relevance to the domain of content by a panel of eight experts using Lynn's (1986) two-stage process for content validation. The Content Validity Index and the kappa coefficient of agreement were analyzed from panelists' quantitative ratings and 15 items were retained. Qualitative suggestions from the experts were also used to improve the final items in the ORAT. Copyright 2002, Elsevier Science (USA). All rights reserved.