The IRISP Measurement Framework

This methods note documents the measurement framework that governs every IRISP study. It specifies how a shared perception is defined operationally, how survey instruments are constructed and piloted, how samples are drawn and documented, and how uncertainty is quantified and displayed in publications.

The framework's central commitment is comparability: instruments are designed so that the same question, asked of different groups, in different countries, or at different times, yields answers that can be placed side by side. The note describes the translation and adaptation protocol that protects this comparability across languages.

Every future IRISP publication will cite this framework and state any deviation from it explicitly. The framework is versioned; revisions will be published as successive editions of this note.