Mila Yulia Herosian|Yeni Rafita Sihombing|Delyanti Azzumarito Pulungan
ITEM RESPONSE THEORY ANALYSIS ON STUDENT STATISTICAL LITERACY TESTS
Universitas Prima Indonesia|Universitas Prima Indonesia|Universitas Prima Indonesia
study aims evaluate quality statistical literacy instruments ex post facto approach results statistical literacy tests 150 students used data analyzed using parscale based item response theory twoparameter grm 2pl logistic model namely item discriminant item difficulty results showed 12 items analyzed good grmirt 2pl model right model statistical literacy instruments polytomous answer types elements statistical literacy instrument constructed accurate information statistical literacy abilities ranging 25 12 least sem occurs maximum test information function assigned test set therefore recommended item analysis tests statistical literacy test items examined study used assess student literacy statistics various schools regions