IEJME, October issue revisited

I have written about the October issue of International Electronic Journal of Mathematics Education in an earlier post. For some reason, the full-text version of the articles in this journal don't appear as a new issue of the journal appears - at least for me they don't! The articles are available now however, and you can freely download them in PDF format. This provides a nice occasion of referring to the articles again, and writing more about one of them:
In this collection, I found the article by Chamberlin, Powers and Novak particularly interesting, so I will provide you with some more details about it. The study reported in this article is related to the No Child Left Behind initiative in the U.S. In relation to this initiative, several professional development courses in the U.S. are required to assess the teachers' content knowledge. This article reports on the evaluation of the impact of these assessments. Although the article does not provide a very thorough theoretical background, it gives a good overview of the survey that were made to investigate the teachers' perceptions about these assessments.

One of the results of this survey was that the teachers appeared to learn more because of the assessments. They explain it like this:
We surmise that these positive effects may be due to an important aspect of theassessment process in these PD courses – the assessment and learning of mathematical topics and material was on-going and demonstrating mastery of those ideas was expected.
Many teachers appear to be reluctant to be tested, and this study apparently describes a study which had positive experiences with assessing the teachers after a course, and this might be interesting for other teacher educators or providers of in-service courses to take a closer look at.