TY - JOUR A1 - Breit, Moritz Lion A1 - Brunner, Martin A1 - Preckel, Franzis T1 - General intelligence and specific cognitive abilities in adolescence BT - tests of age differentiation, ability differentiation, and their interaction in two large samples JF - Developmental psychology N2 - Differentiation of intelligence refers to changes in the structure of intelligence that depend on individuals' level of general cognitive ability (ability differentiation hypothesis) or age (developmental differentiation hypothesis). The present article aimed to investigate ability differentiation, developmental differentiation, and their interaction with nonlinear factor analytic models in 2 studies. Study 1 was comprised of a nationally representative sample of 7,127 U.S. students (49.4% female; M-age = 14.51, SD = 1.42, range = 12.08-17.00) who completed the computerized adaptive version of the Armed Service Vocational Aptitude Battery. Study 2 analyzed the norming sample of the Berlin Intelligence Structure Test with 1,506 German students (44% female; M-age = 14.54, SD = 1.35, range = 10.00-18.42). Results of Study 1 supported the ability differentiation hypothesis but not the developmental differentiation hypothesis. Rather, the findings pointed to age-dedifferentiation (i.e., higher correlations between different abilities with increasing age). There was evidence for an interaction between age and ability differentiation, with greater ability differentiation found for older adolescents. Study 2 provided little evidence for ability differentiation but largely replicated the findings for age dedifferentiation and the interaction between age and ability differentiation. The present results provide insight into the complex dynamics underlying the development of intelligence structure during adolescence. Implications for the assessment of intelligence are discussed. KW - intelligence KW - ability differentiation KW - age differentiation KW - nonlinear KW - factor analysis KW - adolescence Y1 - 2020 U6 - https://doi.org/10.1037/dev0000876 SN - 0012-1649 SN - 1939-0599 VL - 56 IS - 2 SP - 364 EP - 384 PB - American Psychological Association CY - Washington ER - TY - JOUR A1 - Gámez-Guadix, Manuel A1 - Mateos, Estibaliz A1 - Wachs, Sebastian A1 - Blanco, Marta T1 - Self-harm on the internet among adolescents BT - prevalence and association with depression, anxiety, family cohesion, and social resources JF - Psicothema N2 - Background: Using the internet to search for information or share images about self-harm is an emerging risk among young people. The aims of this study were (a) to analyze the prevalence of different types of self-harm on the internet and differences by sex and age, and (b) to examine the relationship of self-harm on the internet with intrapersonal factors (i.e., depression and anxiety) and interpersonal factors (i.e., family cohesion and social resources). Method: The sample consisted of 1,877 adolescents (946 girls) between 12 and 17 years old (Mage = 13.41, SD = 1.25) who completed self-report measures. Results: Approximately 11% of the participants had been involved in some type of self-harm on the internet. The prevalence was significantly higher among girls than boys and among adolescents older than 15 years old. Depression and anxiety increased the risk of self-harm on the internet, whereas family cohesion decreased the probability of self-harm on the internet. Conclusions: Self-harm on the internet is a relatively widespread phenomenon among Spanish adolescents. Prevention programs should include emotional regulation, coping skills, and resilience to reduce in this behavior. N2 - Antecedentes: el uso de Internet para buscar información o compartir imágenes sobre autolesiones físicas es un riesgo emergente entre jóvenes. Los objetivos de este estudio fueron: 1) analizar la prevalencia de diferentes conductas relacionadas con las autolesiones en Internet y las diferencias por sexo y edad; y 2) examinar la relación de las autolesiones en Internet con factores intrapersonales (depresión y ansiedad) e interpersonales (cohesión familiar, recursos sociales). Método: la muestra estuvo compuesta por 1.877 adolescentes (946 mujeres) entre 12 y 17 años (edad media = 13,41, DT = 1,255) que completaron medidas de autoinforme. Resultados: aproximadamente el 11% de la muestra se había implicado en algún tipo de autolesión en Internet. La prevalencia fue mayor entre las chicas y entre los adolescentes mayores de 15 años. La depresión y la ansiedad incrementaron el riesgo de autolesiones en Internet. La cohesión familiar fue un factor de protección contra las autolesiones en Internet. Conclusiones: el uso de Internet para compartir o buscar información sobre autolesiones es un problema relativamente frecuente entre adolescentes. Los programas de prevención deberían incluir habilidades de regulación emocional, afrontamiento y resiliencia para reducir la implicación en este comportamiento. KW - engagement self-harm KW - self-injury KW - adolescence KW - depression KW - anxiety KW - family cohesion KW - social support Y1 - 2022 U6 - https://doi.org/10.7334/psicothema2021.328 SN - 0214-9915 SN - 1886-144X VL - 34 IS - 2 SP - 233 EP - 239 PB - Departamento de Psicología de la Universidad de Oviedo, Colegio Oficial de Psicólogos del Principado de Asturias, Vicerrectorado de Investigación de la Universidad de Oviedo CY - Oviedo ER -