A checklist is presented to identify common problems students exhibit in arithmetic. Alongside general areas of need, common mistakes are listed to help diagnose error patterns for targeting specific skills and designing effective intervention. General areas include readiness, problem solving, whole-number computations, fraction computations, and…

Outlined are the weaknesses of traditional, norm-referenced tests which fail to help in making instructional decisions. Presented is a step-by-step series of operations for analyzing and categorizing arithmetic errors, for selecting corrective strategies, and for applying peer-referenced standards to judge the performance of special needs…

The purpose of this paper is to report the research that took place during the development of the "ENRIGHT Diagnostic Inventory of Basic Arithmetic Skills." This is a criterion-referenced test designed to provide educators with information useful for changing instructional strategies based on known error patterns of students in grades 1 through 9.…