Are Handheld Computers Dependable? A New Data Collection System for Classroom-Based Observations

Abstract

Very little research exists on the dependability of handheld computers used in public school classrooms. This study addresses four dependability criteria—reliability, maintainability, availability, and safety—to evaluate a data collection tool on a handheld computer. Data were collected from five sources: (1) time-use estimations by 19 special education teachers using handheld computers, (2) observations of time use from eight external data collectors, (3) teacher interviews, (4) technical reports, and (5) teacher satisfaction surveys. Results indicate that this data collection tool satisfied all four dependability criteria. The study also confirms that dependable handheld computers can replace paper-based data collection in educational settings.