Researcher Degrees of Freedom: Some Remarks on Secondary Analysis

Researcher Degrees of Freedom: Some Remarks on Secondary Analysis

Christian Bokhove In recent decades more and more educational data have become available, including those from International Largescale Assessments (ILSAs), with the Organisation for Economic Co-operation and Development (OECD) and the International Association for the Evaluation of Educational Achievement (IEA) playing key roles in disseminating results from such ILSA and their international databases. This proliferation […]

“Oh look, Santa brought me an ILSA!”

“Oh look, Santa brought me an ILSA!”

Eemer Eivers For many, December means Christmas, but for those interested in International Large-Scale Assessments (ILSAs), it is a Christmas of another sort. December is traditionally when ILSA results are released and we get to play with our new toys (the huge datasets!).   Like Christmas, ILSA releases have certain traditions. Expect a few psychometricians […]