Provides a framework for understanding the concept of validity and how it applies to simulation research. Extant tests of validity are discussed in terms of this framework, and a general schema for testing validity is proposed. (MBR)

The reliability and developmental and concurrent validity of the Writing What You Read (WWYR) rubric, designed for use with paper and pen, for hypermedia-authored narrative productions of students in grades 2 and 3 were studied. Sixty students from 4 classrooms produced hypermedia narratives (interactive multimedia presentations) that were rated…

This study investigated the reliability and developmental and concurrent validity of the Writing What You Read (WWYR) rubric, an instrument originally designed for use with paper-and-pen-created narratives, for hypermedia productions of students in grades 2 and 3. Four teachers guided their students in a 3-month-long hypermedia/process writing…

Prekindergarten students (n=1,137) in an ethnically and socioeconomically diverse urban public school took a kindergarten diagnostic assessment in September prior to entry into the regular kindergarten program. The assessment was a pilot version of a longer instrument that had been used at the school for several years. Results were used for…