This study illustrates how a diagnostic testing model can be used to make detailed comparisons between student populations participating in international assessments. The performance of Turkish students on the TIMSS-R mathematics test was reanalyzed with a diagnostic testing model called the Rule Space Model. First, mathematical and cognitive…

This study investigated the functions of annotations, the role of annotations in markers' decision-making processes, whether annotations conform to conventions, and whether these vary according to subject area. Across subjects a number of scripts were analysed to survey which annotations are subject specific and which are more general. Twelve…