Comparing apples with oranges? An approach to link TIMSS and the National Educational Panel Study in Germany via equipercentile and IRT methods
Duchhardt, Christoph ; Köller, Olaf ; Nissen, Annika ; Ehmke, Timo - 2015 - English
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Duchhardt, Christoph ; Köller, Olaf ; Nissen, Annika ; Ehmke, Timo - 2015 - English
Cachaper, Cecile ; Dahl Soendergaard, Bettina - 2008 - English