Português
Diniz Lopes began his academic career in 1998 at ISCTE – University Institute of Lisbon, as a Trainee Assistant in the Department of Social and Organizational Psychology, and is currently an Associate Professor (with Habilitation) in that Department. He is presently serving his second term as Director of the School of Social Sciences and Humanities of Iscte. He was a member of the Iscte General Council between 2022 and 2025. He headed the Department of Social and Organizational Psychology from 2019 to 2021 and served as Deputy Director of the School of Social Sciences and Humanities of Iscte during the same period. He was also Deputy Director of the Department of Social and Organizational Psychology at Iscte between 2014 and 2015. He directed the Master’s Degree in Social and Organizational Psychology from 2015 to 2019. Between 2013 and 2017 he coordinated the Social and Organizational Psychology Laboratory of Iscte (LAPSO, of which he is a co-founder). He has been a researcher at CIS-IUL since 1998, becoming an Integrated Researcher in 2007. He was President of the Portuguese Psychological Association (APP) between 2016 and 2019 and its Vice-President between 2013 and 2016. From 2000 to 2002, he was also an invited junior researcher at the Institute of Social Sciences of the University of Lisbon.
In recent years, he has coordinated and/or collaborated on 14 research projects with national or international competitive funding. He has published over one hundred scientific works, including 67 articles in international journals, most with an impact factor above 1 (highest impact factor = 6.706) and classified in Scimago Q1 or Q2, some in the top 5% and 10%, as well as citation indices above the average for articles published in the field (highest FCR index = 43.0). He has also published 19 chapters in national and international books, as well as several books, including a work on racism in Portugal co-authored with Jorge Vala and Rodrigo Brito of ICS-UL – a pioneering study on prejudice and discrimination against Black individuals living in Portugal. He has delivered roughly one hundred and fifty papers and posters at international and national scientific meetings, as well as numerous invited talks at academic institutions in Portugal, Europe, and North America. He is currently supervising three doctoral theses.
His earliest line of research examines the processes through which everyday knowledge produced in groups is validated (initiated in 1998). At present, his research interests focus on the study of online human behaviour, specifically cancel culture and its collateral phenomena. Another area in which he has conducted research concerns human interpersonal relationships, especially homo- and heterosexual romantic relationships, their maintenance or dissolution, and human sexual behaviour, particularly extra-dyadic sexual behaviour and non-monogamy, pornography use, and risky sexual behaviour. In parallel, he has also developed research on human–animal interaction, specifically the role of perceived commitment in relationships with companion animals, trust and attitudes toward these animals, and the individual and social causes and consequences of aversive behaviours and abandonment of pets. More broadly, his research and publications have reflected the use of quantitative methods, the study and development of computer applications for data analysis or experimentation in Psychology, as well as the development and examination of psychological assessment instruments and their psychometric properties.
In addition to his scientific activities, he also carries out teaching activities, having taught courses at the 1st, 2nd, and 3rd cycles at Iscte, as well as workshops on quantitative methods and specialized software in Psychology (e.g., Mplus), in which he has extensive experience both as a user and as an instructor.
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© 2026 Iscte – Instituto Universitário de Lisboa