Guttman Analysis

Abstract

This chapter introduces the Guttman Analysis, an effective tool for grouping students based on demonstrated skills. The chapter provides a step-by-step process through which teachers can organise data from either objective or judgement-based assessment tasks into a readily interpretable and visual form. The chapter shows teachers how to interpret data to evaluate the reliability of an assessment task, both at a general and item level. The implications for this sort of analysis are considered, including the scenario where an assessment task foes not capture skills within a student's ZPD. Finally, teachers are introduced to the process of using data to target teaching through the formation of ..