Oberleiter Sandra, Wurzer Jana, Mikas Michael, Held Martin, Wieland Bettina, Zeilinger Elisabeth L, Voracek Martin, Pietschnig Jakob
Department of Developmental and Educational Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria.
Vienna Doctoral School in Cognition, Behavior, and Neuroscience (VDS CoBeNe), University of Vienna, Vienna, Austria.
Front Psychol. 2025 May 14;16:1547520. doi: 10.3389/fpsyg.2025.1547520. eCollection 2025.
Increasingly inconsistent generational IQ test score change patterns across recent decades have been suggested to be due to increased ability differentiation as a consequence of cross-temporally decreasing strengths of the positive manifold of intelligence. Here, we investigate the Flynn effect and directly test the idea of a changing positive manifold, based on the performance of = 204 Austrian Air Force pilots and air traffic controllers across twelve IQ subtests. Subscale change scores indicated consistent gains in measures related to the CHC (Cattell-Horn-Carroll) stratum II domains of fluid reasoning, quantitative knowledge, and retrieval. However, change patterns in the stratum II domains working memory and comprehension knowledge were ambiguous and suggest stratum I-based differentiation of the Flynn effect. In all, our results indicate positive and substantial Flynn effects in the majority of examined subscales, but no evidence for any meaningful changes in the positive manifold strength.
近几十年来，代际智商测试分数变化模式越来越不一致，这被认为是由于智力正向流形的强度随时间推移而下降，导致能力分化加剧。在此，我们基于204名奥地利空军飞行员和空中交通管制员在12个智商子测试中的表现，研究弗林效应并直接检验正向流形变化的观点。分量表变化分数表明，在与流体推理、定量知识和检索的CHC（卡特尔-霍恩-卡罗尔）第二层领域相关的测量中，分数持续提高。然而，第二层领域工作记忆和理解知识的变化模式并不明确，这表明弗林效应是基于第一层的分化。总体而言，我们的结果表明，在大多数被检查的子量表中存在积极且显著的弗林效应，但没有证据表明正向流形强度有任何有意义的变化。
