Measurement of Orem's basic conditioning factors: a review of published research

The purpose of this review was to examine published research on basic conditioning factors described in Orem's self-care deficit theory of nursing, in order to identify operational definitions, measurement strategies, and the results of the analyses. Thirty-five research articles published between 1987 and 1997 met the criteria for inclusion in the review. Consensus or lack of consensus in operational definitions for specific factors was determined and successful measurement methods were identified. Recommendations are made for revising conceptual and operational definitions. Suggested measurement strategies for the factors are discussed.