The Reisman Diagnostic Creativity Assessment (RDCA) is a free online self-report creativity assessment that provides immediate feedback to the user and is diagnostic, rather than predictive, with the focus on making the user aware of creative strengths and weaknesses. Several engineering and teacher education studies have included the RDCA over a period of 3 years to refine the document items as a result of factor and statistical analyses. We acknowledge the advantages and disadvantages of self-report instruments and question the traditional use of reliability as a psychometric measure for self-report assessments. Many tools and techniques for enhancing creative factors identified by the RDCA are included.