Youth violence prevention, youth mentoring and positive youth development, migration among children and youth, health and cultural competency, and community-based programs. Liberation psychology and history of psychology in Latin America.
Balcazar, F.E., Taylor-Ritzler, T., Dimpfl, S., Portillo, N., Guzman, A., Schiff, R., & Murvay, M. (2012). Improving the transition outcomes of low-income minority youth with disabilities. Exceptionality, 20, 114-132. doi:10.1080/09362835.2012.670599
Portillo, N. (2012). The life of Ignacio Martin-Baro: A narrative account of a personal biographical journey. Peace and Conflict: Journal of Peace Psychology, 18, 77-87. doi: 10.1037/a0027066
DuBois, D.L., Portillo, N., Rhodes, J.E., Silverthorn, N., & Valentine, J.C. (2011). How effective are mentoring programs for youth? A systematic assessment of the evidence. Psychological Science in the Public Interest, 12, 57-91. doi: 10.1177/1529100611414806
Hasnain, R., Kondratowicz, D. M., Borokhovski, E., Nye, C., Balcazar, F., Portillo, N., Hanz, K., Johnson, T., & Gould, R. (2011). Do cultural competency interventions work? A systematic review on improving rehabilitation outcomes for ethnically and linguistically diverse individuals with disabilities. FOCUS Technical Brief, 31. Austin, TX: SEDL, National Center for the Dissemination of Disability Research.
Luque-Ribelles, V., Garcia-Ramirez, M., & Portillo, N. (2009). Gendering peace and liberation: A participatory-action approach to critical consciousness acquisition among women in a marginalized neighborhood. In M. Montero & C. Sonn (Eds.), The psychology of liberation: Theory and practice (pp. 277-293). New York, NY: Springer.