The Development and Validation of the Zero Cost Textbook Satisfaction Scale (ZSS)

Abstract

This paper aimed to develop and validate the Zero Textbook Satisfaction Scale (ZSS), a measurement tool to assess student satisfaction with Zero Textbook Costs (ZTC) resources. The validated ZSS is available via a CC BY-NC-ND license and is a valuable tool for faculty and institutions seeking to understand student perceptions of their OER/ ZTC adoptions and for broad scale OER/ZTC adoption initiatives seeking to understand student experiences with materials across a wide variety of courses. The ZSS was administered, revised, and validated following DeVellis (2017) 8 steps for validating measurement tools. The secondary data was analyzed using Exploratory Factor Analysis (EFA), which resulted in 11 items on 1 factor and a Cronbach's alpha, which showed excellent internal consistency (α = .94). The ZSS validated tool is designed to be used by faculty who would like to assess student satisfaction with the open source textbooks, and compare data to other sites of adoption.

Effective Strategies for Finding Open Educational Resources in High School

“…Aunque ninguno de los libros seleccionados por los participantes se reutilizó en su totalidad, se realizaron adaptaciones al extraer y traducir capítulos específicos. Esta perspectiva coincide con el estudio de Redcay et al (2022), quienes desarrollaron y validaron una escala de satisfacción sobre la implementación de libros de texto gratuitos. Esta investigación proporciona un punto de referencia que los docentes y las autoridades pueden utilizar para facilitar futuros ajustes que respalden la adopción de libros de texto gratuitos a nivel institucional.…”