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...
Question Difficulty (P-Value) Question Difficulty and P-Value: How They Connect In educational assessment, there are actually two different meanings of “p-value” that you might encounter....
Frequency Distribution A frequency distribution shows you how many students scored at each level on your assessment. It’s basically a way to see the...
Question Quality Distributions (Point Biserial) Color-Coded Quality Levels: What These Patterns Tell You: Practical Application: When you get assessment results back (especially from district or...