Bill Schroyer is a career educator who has spent thirty-five years helping teachers and administrators use data to guide instructional decisions. Bill has a Ph.D. in Educational Research and Measurement and is the owner and director of Schroyer Psychometric Services, a consulting firm that works with schools to conduct program and project evaluations. In 2001, Bill co-authored the Disaggregated Data Reports© with Dr. Clif St. Germain. The rationale for these data reports is simple: turn volumes of data into easily understood and applied information that teachers, principals and superintendents can use to support student learning.

Why Use Disaggregated Data?

All too often school districts spend a week during the spring testing every child in school only to get results in formats that are both difficult to interpret and even more difficult to use for instructional planning. Disaggregated Data Reports© re-roster student test data into a set of "At A Glance" charts that group students who share similar academic characteristics and suggest best practice instructional interventions for these learners.

For a more detailed description of these reports see Learning Places chapter 3.


What Can You Learn from Disaggregated Data Reports©?

• Who are the students who might qualify for advanced placement and/or gifted classes?
• Who are the students whose test scores are presently above average?
• Who are the students who would profit most from limited school-wide intervention to measurably improve their academic performance?
• Who are the students with minimal knowledge of the subjects tested who could benefit from intensive reading instruction and/or basic mathematics support?
• Who are the students who might qualify for special needs programs?

The Disaggregated Data Reports© provide answers to these questions and much more. For each group identified, the reports also provide a plan of action for each student and an accompanying chart to keep track of each student's progress through the plan. It is an accountability system to be used at any level within a district.