Management of End-of-Life Tires: Validation of the Questionnaire for the Ecuadorian Land Force

Abstract

The study is part of the research project entitled "Management of end-of-life tires (NFU) of the Land Force in the framework of Social Responsibility" and focused on the methodological validation of an instrument designed to evaluate the management of end-of-life tires in the Ecuadorian Land Force. This instrument, developed under a mixed approach and with the participation of logistics and sustainability experts from different countries, was subjected to an exploratory factor analysis and a Promax rotation was applied. The results showed that the questionnaire has a clear and adequate structure, explaining 79.323% of the total variance in six key components related to logistics supervision, environmental regulations, classification, storage, final disposal, and recycling of NFUs. Cronbach's alpha coefficient greater than 0.85 in all dimensions confirmed the internal reliability of the instrument, supporting its use for future research and sustainable practices in military logistics management.