The concept of validity, as described in the literature, has changed over time to become a broad and rather complex issue. The purpose of this paper is to investigate if practice has followed theory, or if there is a gap between validity in theory and validity in practice. It compares the theoretical development of the concept of validity with the…

Education and assessment in Swedish schools have been affected by several reforms during the last two decades. The educational system has moved from centralization to decentralization and a goal-oriented approach has been introduced on all educational levels. This paper provides an historical overview of the Swedish educational system, educational…

This study investigates empirically the mechanisms behind the increasing grade point averages in Swedish upper secondary schools. Four hypotheses are presented as plausible explanations; improved student achievements, student selection effects, strategic behaviour in course choices, and lowering of grading standards. The analysis is based on…