[Development and Validation of the Revenge Fantasy Inventory for Adolescents (RFI-J)]

The Revenge Fantasy Inventory for Adolescents (RFI-J) is a paper-pencil-questionnaire that aims at assessing revenge fantasies of adolescents and facilitates an interpersonal comparison of revenge fantasies. The RFI-J assesses components concerning the subjective relevance of revenge fantasies, for example a coherence with emotion regulation and adolescent's attitudes towards revenge. In addition, the content of revenge fantasies is measured. The psychometric properties of revenge fantasies were analysed in two studies: In the first study an early concept of the instrument (consisting of two parts: assessment of subjective relevance of the fantasies and assessment of revenge fantasy content) was presented to 248 students (123 males) with an average age of 14.9 years (SD=0.89; Range=14-18 years). Using Principal Component Analysis (PCA) both parts of the instrument were dimensionalised. Subsequently, scales were built and a first version of the inventory was developed. In a second study with another sample consisting of 88 students (48 males) with an average age of 14.9 years (SD=0.72; Range=14-17 years) four of the factors which had been found in the first study were replicated. Furthermore, correlations were found between the RFI-J and measures of aggression, measures of pro-sociality, as well as measures of physical and psychological complaints. The developed test in its current version consist of two parts (18 and 6 Items).