Participants

    The sample was composed of 70 participants (50% females), between 13 and 17 years old (M = 14.53, SD = 0.76). Participants were third (61.4%) and fourth (38.6%) year students of Secondary Compulsory Education (ESO) of high schools in Spain. Regarding race and ethnicity, 80% (n = 56) of the sample was white, 14.3% (n = 10) was from Latin America, and 5.7% (n = 4) was Maghrebi. Participation was voluntary.
    The aim of the study was described along with the information about the confidentiality and anonymity of the data. For underage participants, an informed consent form signed by their parents or legal guardians was required. Students who returned the signed consents were asked about their dating relationships, as to be eligible to participate in the study it was necessary to have had at least one relationship. Of the 100 students who returned their consents, 70 fulfilled the inclusion criteria. The average duration of the relationship was four months (SD = 1.9).