[Association or agreement between clinical measurement methods?].
Method comparison is often needed and unfortunately often analysed inappropriately. In particular, the use of correlation may be misleading with a high value of the correlation coefficient interpreted as an indication of good agreement. The difference between association and agreement are emphasized and the difference plot method is demonstrated using a worked example. Finally the interpretation of bias and limits of agreement are discussed.
This action study embraces Stassen’s four principles for good practice in assessment in higher education by involving candidates of two programs—a teacher preparation program and an administrator preparation program—collaborating on an assessment project. Preservice teachers submitted “authentic” artifacts from their student-teaching experience (e.g., a videotaped lesson), while aspiring school leaders provided a detailed analysis using an assessment rubric. Results and lessons learned from this type of collaborative assessment are shared. The authors conclude by offering a model regarding how the four principles of best practice can be embedded in an assessment project that facilitates student learning.