LIWC2015 in Brazilian Portuguese was developed, primarily, based on LIWC2015 in English.
When using the Brazilian Portuguese LIWC2015 dictionary (LIWC2015pt) for academic purposes, please cite both article:
CARVALHO, FLAVIO ; PASCHOAL JUNIOR, F. ; OGASAWARA, EDUARDO; FERRARI, LILIAN ; GUEDES, GUSTAVO . Evaluation of the Brazilian Portuguese version of linguistic inquiry and word count 2015 (BP-LIWC2015). Language Resources and Evaluation, v. 1, p. 1-20, 2023.
Article link: https://doi.org/10.1007/s10579-023-09647-2
Flavio Carvalho, Rafael Guimarães Rodrigues, Gabriel dos Santos, Pedro Cruz, Lilian Ferrari, and Gustavo Paiva Guedes. 2019. Evaluating the 2015 Brazilian Portuguese LIWC Lexicon with sentiment analysis in social networks. In CSBC 2019 – 8º BraSNAM, Belém, Brazil.
Article link: https://sol.sbc.org.br/index.php/brasnam/article/view/11169
Access the database in: https://github.com/LaCAfe/LIWC2015pt