1. Asún, R. A., Rdz-Navarro, K., & Alvarado, J. M. (2016). Developing multidimensional likert scales using item factor analysis: the case of four-point items. Sociological Methods & Research, 45(1), 109–133.
2. Çam, S., & Tümkaya, S. (2008). Development of interpersonal problem solving inventory for high school students: The validity and reliability process. International Journal of Human Sciences, 5(2), 1–17.
3. Dereli-İman, E. (2013). The social problem-solving questionnaire: Evaluation of psychometric properties among Turkish primary school students. Egitim Arastirmalari - Eurasian Journal of Educational Research, 52, 97–116.
4. Dunn, T. J., Baguley, T., & Brunsden, V. (2014). From alpha to omega: A practical solution to the pervasive problem of internal consistency estimation. British Journal of Psychology, 105(3), 399–412.
5. D’Zurilla, T. J., & Nezu, A. M. (2001). Problem-solving therapies. In K. S. Dobson (Ed.), Handbook of Cognitive Behavioural Therapies (pp. 211-245). New York, London: The Guildford Press.