Introduction. The Index of Learning Styles (ILS) is a questionnaire created to assess students’ preferences regarding how they learn. It was originally designed in English for university students. The objective of the present work is to adapt the ILS questionnaire to Spanish and validate this adapted version, taking into account the cultural characteristics and cognitive level of the recipients, namely Spanish students aged 11–15. Method. We used the Delphi method involving expert opinions for content validation and the Brown and Maydeu-Olivares model, an approach from the Item Response Theory, for construct validation (this model is recommended for forced-choice items). Results. We located new items in the data scrubbing process, which in previous research were missed using classical factor analysis. The results for the global fit of the model show that 32 of the 44 items in the original questionnaire, display optimal values in various indices (RMSEA, CFI, X2, among others), and so this instrument can be used to identify learning style preferences in Spanish adolescents. Discussion. The Brown and Maydeu-Olivares model takes into account the nature of forced-choice items and this is the first the first time it has been applied to the ILS questionnaire. This validation procedure is novel and proves to be an optimal validation method for questionnaires with this type of items. The interest in the ILS questionnaire is due to the dimensions it assesses, which provide teachers and students with information about learning preferences for better psycho-pedagogical orientation and for the design of more personalized educational interventions.

La fauna terrestre de invertebrados del archipiélago protegido de Columbretes es poco conocida. Además, los pocos estudios existentes se centran en su isla principal, Illa Grossa. Aquí presentamos el listado de especies de invertebrados no registradas, hasta el momento, en el archipiélago, resultados obtenidos mediante una combinación de capturas con trampas de caída, avistamientos y recolecciones aleatorias realizadas tanto en Illa Grossa como en otros tres islotes de este archipiélago. Mediante el primer método se recolectaron un total de 14.830 especímenes entre 2008-2011. La mayor cantidad de individuos recolectados mediante este método resultaron ser coleópteros tenebriónidos. Los otros dos métodos proporcionaron 514 registros para el período 2004-2013. En total, se han identificado 45 nuevos taxones correspondientes a 40 géneros y 16 familias. La mayoría de las nuevas especies encontradas no fueron frecuentes a lo largo del período de muestreo. Entre ellas, figuran especies típicas de hábitats antrópicos (p.e. Cydnus aterrimus o Gryllus bimaculatus). Sorprendentemente, también se localizaron en ocasiones especies con capacidades de dispersión limitadas y no presentes en islas pequeñas (p.e. Cebrio superbus).