Joana Mello’s research interest focuses mostly on the study of the psychological mechanisms by which attitudes are changed and maintained. This research examines how different features of the source (e.g., physical attractiveness) and the recipient of a message (e.g., self-perceptions, naïve theories) can influence attitude change (persuasion) and attitude strength. This research has examined these effects regarding judgments of objects (e.g., consumer products), behaviors (e.g., recycling, voting), and entities (e.g. governmental implementations). Additionally, her research also focuses on the study of the different contributions of familiarity and fluency to judgments, more specifically to judgments of truth.
Mello, J., Garcia-Marques, T., Briñol, P., Cancela, A., & Petty, R. E. (2020). The influence of physical attractiveness on attitude confidence and resistance to change. Journal of Experimental Social Psychology, 90, 104018. doi:10.1016/j.jesp.2020.104018
Mello, J. & Garcia-Marques, T. (2018). The attractiveness-positivity link: Let’s contextualize it. The Journal of Social Psychology, 158, 639-645. doi: 10.1080/00224545.2018.1445614
Briñol, P., Petty, R. E., Santos, D., & Mello, J. (2017). Meaning moderates the persuasive effect of physical actions: Buying, selling, touching, carrying, and cleaning thoughts as if they were commercial products. Journal of The Association of Consumer Research, 2, 460–471. doi:10.1086/693561
Garcia-Marques, T., Silva, R., & Mello, J. (2016). Judging the truth value of a statement in and out of a context of deep processing. Social Cognition, 34, 40-54. doi:10.1521/soco.2016.34.1.40
Silva, R. Garcia-Marques, T., & Mello, J. (2015). The differential effects of fluency due to repetition and fluency due to color contrast on judgments of truth. Psychological Research, 80, 821-837. doi:10.1007/s00426-015-0692-7