Findings from the expert-novice paradigm on differential response behavior among multiple-choice items of a pedagogical content knowledge test - implications for test development.

Pedagogical content knowledge (PCK) is one core dimension of teachers' professional knowledge and comprises knowledge about conceptual ideas of learners and appropriate instructions. However, several challenges regarding the assessment of PCK are discussed in the literature: For example, PCK is a topic-specific construct and contains differentiable subdomains, which must be considered during test development. In addition, the choice of test type needs to be considered.