Development and Validation of a Measure of Administrative Decision-Making in Student Discipline (ADMin-SD)

The purpose of this study was to fill a critical measurement gap by developing and validating a measure of Administrator Decision-Making in Student Discipline (ADMin-SD). This article shares the theoretical underpinnings, methods, and findings related to its development and validation, which took place over three iterative phases: developing items and examining content validity, pilot testing, and field testing after making revisions. This article focuses on the field test. After this iterative process, the instrument demonstrated adequate reliability and moderate discriminant validity according to respondents' school-based administrator status and their self-reported expertise in addressing student discipline.