“…The technique and interventions used by the therapist constitute specific factors of the therapeutic process of each treatment modality (Goldfried & Davila, ; Hayes & Brunst, ). The therapeutic alliance is considered a common factor across different theoretical orientations (Carvalho, Fiorini & Ramires, ; Goldfried & Davila, ; Hilsenroth, Cromer & Ackerman, ; Horvath et al ., ). Likewise, enhancing mentalization has also been considered a common process factor inherent to all effective treatment models (Adshead & Fonagy, ; Goodman, Midgley & Schneider, ; Specht et al ., ; Tessier et al ., ).…”