Humphry (this issue) has written a thought-provoking piece on the interpretation of item discrimination parameters as scale units in item response theory. One of the key features of his work is the description of an item response theory (IRT) model that he calls the logistic measurement function that combines aspects of two traditions in IRT that…

The project Self-Assessment and Self-Evaluation in New Forms of Training near the Workplace--A Step Towards the Learning Organisation was undertaken in Bavaria, Germany, to help companies begin the process of becoming learning organizations by helping workers manage their own learning. The project is based on the following principles and…