摘要：Introducción/objetivo: Los estudios realizados en algunos países, incluyendo a Colombia, indican altas prevalencias de ciberviolencia en el noviazgo. Sin embargo, en dicho país no se cuenta con instrumentos validados para medir esta forma de violencia. El objetivo de este estudio fue evaluar la confiabilidad y la validez de la Escala de Abuso Online en Relaciones de Noviazgo. Método: Participaron 2023 estudiantes de colegio y universitarios (53% mujeres), entre 13 y 40 años. Resultados: El análisis factorial exploratorio demostró la conveniencia de conservar la estructura original de 20 ítems de las dos escalas del instrumento (perpetración y victimización) y las dos subescalas de cada una (“agresiones directas” y “monitoreo/control”), estructura que fue ratificada por el análisis factorial confirmatorio con índices adecuados de ajuste. Además, las cuatro subescalas correlacionaron significativamente entre sí y con las escalas de la Lista de Chequeo de Experiencias de Maltrato Psicológico en la Pareja. Los índices alfa oscilaron entre .75 y .87. Conclusiones: Estos resultados indican que el instrumento presenta unas propiedades psicométricas que avalan su uso con adolescentes y adultos jóvenes colombianos.
其他摘要：Introduction: Current cognitive theories suggest that mathematical learning dis abilities may be caused by a dysfunction in the ability to represent non-symbolic numerosity (non-symbolic skills), by impairments in the ability to associate symbolic numerical represen tations with the underlying analogic non-numerical magnitude representation (symbolic and numerical mapping skills), or by a combination of both deficits. The aim of this study was to contrast the number sense hypothesis and the access deficit hypothesis, to identify the possible origin of the varying degrees of arithmetical difficulties. Method: We compared the perfor mance of children with very low arithmetic achievement (VLA), children with low arithmetical achievement (LA), and typically achieving peers (TA), in non-symbolic, symbolic and numerical mapping tasks. Intellectual capacity and working memory were also evaluated as control vari ables. The sample comprised 85 Chilean children (3rd to 6th grades) from the Public General Education System. Data were included in several covariance analyses to identify potentially different behavioural profiles between groups. Results: The results showed deficits in both non-symbolic numerosity processing and number-magnitude mapping skills in children with VLA, whereas children with LA exhibited deficits in numerical mapping tasks only. Conclusions: These findings support the hypothesis of impaired non-symbolic numerical representations as the cognitive foundation of severe arithmetical difficulties. Low arithmetical achievement, in contrast, seems to be better explained by defective numerical mapping skills, which fits the access deficit hypothesis. The results presented here provide new evidence regarding the cogni tive mechanisms underlying the different behavioural profiles identified in children with varying degrees of arithmetical difficulties.
关键词：Violencia en el noviazgo;adolescentes;adultos jóvenes;propiedades psicométricas;ciberviolencia
