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Rolf Vegar Olsen & Sigrid Blömeke Most of the international large-scale assessments are repeated in regular intervals. PISA is conducted every three-years, TIMSS every fourth year, and PIRLS is conducted with five-year intervals. Accordingly, this allows for comparisons within countries...

Álvaro Choi Evaluating the effects of specific country / regional policies using large scale international assessments is a challenging task. This is primarily because this is not actually what they have been designed for. However, the rich data contained within...

John Jerrim, Jake Anders, Silvan Häs, Nikki Shure & Laura Zieger When the Programme for International Student Assessment (PISA) results are released every three years, it is now little surprise that a set of East Asian nations (e.g. Singapore, Taiwan,...