When collecting data, science education researchers frequently have multiple respondents evaluate multiple artifacts using multiple criteria. Herein, the authors introduce Multifaceted Rasch Measurement (MFRM) analysis and explain why MFRM must be used when "judges'" data are collected. The authors use data from elementary science…

Curriculum materials are a crucial tool with which teachers engage in teaching practice. For preservice teachers to learn to use science curriculum materials in productive ways, they must develop a conception of themselves as elementary teachers in which the use of science curriculum materials is a valued dimension of science-teaching practice. We…