Resumen: The objective of this study was to adapt and validate the scale of positive and negative experiences (SPANE) with Spanish adolescents, and to evaluate its relation with different scales of Subjective Well-being. SPANE is a recently developed questionnaire about affective well-being that can be considered an alternative to the instruments commonly used to evaluate positive/negative affects. The transcultural adaption process included translation and back translation stages, a panel of judges evaluating translations, and running a pilot test before obtaining a final version. The sample was formed by adolescents recruited for the study (N=1,060, Mean age=16.23 yrs). The adolescent’s version of this questionnaire showed good reliability, validity and internal consistency. It is an easy instrument to understand and is quick to complete, so it is considered useful for evaluating positive and negative experiences. The exploratory factorial analysis (EFA) clearly showed that both SPANE-P and SPANE-N presented 56.8% of accumulated variance (SPANE-P explained 31.30%, SPANE-N accounted for 24.88% of this variance for well-being), and both were capable of explaining the unique variance for well-being. These results evidence SPANE’s validity with adolescents, and support its use as a measuring instrument to evaluate experiences and predict well-being. Idioma: Inglés DOI: 10.15405/epsbs.2019.04.02.34 Año: 2019 Publicado en: The European Proceedings of Social & Behavioural Sciences 60 EDUHEM 2018, 34 (2019), 268-275 ISSN: 2357-1330 Originalmente disponible en: Texto completo de la revista