This document is supplementary material for the paper “Changes in Research Ethics, Openness, and Transparency in Empirical Studies between CHI 2017 and CHI 2022”; published at ACM CHI 2023. The document provides the rationale behind each criterion in detail with additional citations. We hope that knowing the rationale will better encourage practices related to research ethics,openness, and transparency.The original paper and paper and all supplementary materials are freely available at: https://doi.org/10.17605/osf.io/n25d6