Ibadan knee/hip osteoarthritis outcome measure: process of development

The development of instruments for the assessment of therapeutic intervention has been an age long practice. However, many of the published instruments do not have detailed information on how the instruments were developed. It is necessary for authors to provide detailed (step by step) information on how measuring scales/instruments are developed. The Ibadan Knee/Hip Osteoarthritis Outcome Measure (IKHOAM) was developed as a Nigerian-environment and culture-friendly instrument for the assessment of the effectiveness of therapeutic interventions in individuals with osteoarthritis of the knee and/or hip. This article outlines the steps involved in developing an outcome measure using IKHOAM as a template.