Cronbach’s Alpha Cronbach’s Alpha: A Simple Guide for Teachers Cronbach’s Alpha is a statistical measure that tells you how well the different questions...
Point Biserial Correlation Point Biserial Correlation measures the relationship between getting a single test question right or wrong and a student’s overall performance on...
Rasch Model (Simple) The Rasch Model is a sophisticated way of analyzing test results that puts both student ability and question difficulty on the same...
