This additional material was created to enable full replication of the experiment described in the paper: "Klara Borowa, Maria Jarek, Gabriela Mystkowska, Weronika Paszko and Andrzej Zalewski: Debiasing architectural decision-making: a workshop-based training approach". The paper was accepted for publication at ECSA 2022 (The 16th European Conference on Software Architecture). The folder contains the following files: Coding-details.xlsx - the coding scheme, as well as coding results. Contains all code counts for each team participating in the experiment. Experiment-meeting-plan.pdf - contains the plan for the 3-hour meeting during which the experiment was conducted, as well as a timetable of when each meeting took place and who organised it. Debiasing-workshop-slides.pdf - slides used during the debiasing workshop. Debiasing-workshop-plan.pdf - detailed instruction for workshop organisers, what should be said and done during the workshop. Participants_questionnaire_and_results.xlsx - questionnaire questions used to obtain information about participants, as well as questionnaire results for all 44 participants.