One of the most difficult attributes of applying reliability and validity to assessment is recognizing that over time minor changes to content, expectations, or interpretations of content have a cumulative effect that can undermine assessments. In other words, it is very difficult to overcome a static perspective of reliability and validity. Over time, it's very likely that many small changes occur in content, interpretation of assignments, and emphasis on specific content elements. There seems to be much more focus on updating material and less focus on the reliability and validity of assessments. It's possible that very small changes in course… >>>