Sandra Johnson
7 Papers
39 Citations
Sandra Johnson is an academic researcher. The author has contributed to research in topics: Reliability (statistics) & Rasch model. The author has an hindex of 5, co-authored 7 publications.
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Papers
On the supranational spell of PISA in policy
Jo-Anne Baird,Sandra Johnson,Therese N. Hopfenbeck,Talia Isaacs,Terra Sprague,Gordon Stobart,Guoxing Yu +6 more
TL;DR: The supranational spell of PISA in policy is in the way that PISA results are used as a magic wand in political rhetoric, as though they conjure particular policy choices.
Marker effects and examination reliability: a comparative exploration from the perspectives of generalizability theory, Rasch modelling and multilevel modelling
Jo-Anne Baird,Malcolm Hayes,Rod Johnson,Sandra Johnson,Iasonas Lamprianou +4 more
- 01 Jan 2013
TL;DR: This article looked at how three different analysis methods could help us to understand rater effects on exam reliability, including generalizability theory (G-theory), item response theory (IRT) and multilevel modeling (MLM), using data from AS component papers in geography and psychology.
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