Operationalizing the Construct of the Internal Saboteur: Development and Psychometric Validation of the Internal Saboteur Scale (ISS). - Caretti, Vincenzo; Topino, Eleonora; Fontana, Andrea; Di Cesare, Gianluigi; Mucci, Clara; Schimmenti, Adriano; Gori, Alessio (European Journal of Investigation in Health, Psychology & Education (EJIHPE), 2026)