“…In essence, triangulation consists of documenting information and contrasting it according to different points of view, which is why we talk about the triangulation of techniques, agents, times, and even methodologies. As a contrast technique, it reveals the contradiction, inconsistency or convergence between data obtained by different sources, as proven by, among others, the works of Bjurulf et al (2013), Brown et al (2015), Flick (2005), López et al (2013), Teixeira et al (2012), Van Drie and Dekker (2013). In addition, with Barusch et al (2011), Bekhet and Zauszniewski (2012), Beattie et al (2005), Hind (2017), Newman et al (2013), Oelinik (2015), Okoe and Boateng (2016), Schraeli et al (2017), Stutz (2016) and Torrance (2012), we can affirm that triangulation strategies allow the exercise of quality control over qualitative research processes, offering confidence tests and guarantees that the results and findings proposed there meet minimum requirements of credibility, rigor, veracity and robustness.…”