This study aims to compare pairs located in three different conditions: intervention TFE online, intervention TFE in person, and waiting list. Consider variables such as the setting dyadic or feature reflective. The evaluation is performed in Spanish-speaking countries, and we have data of the same therapists intervening in the modality and the modality online. E-Effects seeks to evaluate the therapy, as normally occurs in the clinical practice, to increase the external validity of the study.