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Early algebra knowledge predicts later fraction understanding and improves with fraction instruction 早期的代数知识预示着以后对分数的理解,并随着分数教学而提高。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-16 DOI: 10.1016/j.jecp.2025.106418
Michael D’Erchie , Claire L. Forsmann , Michael Schneider , Andreas Obersteiner
Recent studies show that students’ fraction knowledge predicts their later algebra knowledge. This longitudinal study investigated whether this relationship is bidirectional—that is, whether early algebra knowledge predicts later fraction knowledge—and whether early algebra knowledge improves during fraction instruction. We followed 379 German fifth- and sixth-graders, assessing their early algebra and fraction knowledge before and after a period of six to nine months of fraction instruction. Pretest early algebra knowledge proved a stronger predictor of post-instruction fraction knowledge than either pretest fraction knowledge or end-of-year math grades reported at the study’s outset (small-to-medium effect size). Additionally, students’ early algebra knowledge improved during fraction instruction (small effect size). While prior research typically frames fractions as foundational for algebra, our findings complement this view by providing evidence that the reverse direction also holds true: early algebra knowledge predicts later fraction knowledge. Although the results do not establish causality, they point to the possibility that strengthening early algebraic thinking could benefit fraction learning, and that instruction on fractions may, in turn, improve algebra knowledge. Future experimental studies should explore how to leverage these findings instructionally to support mathematical development.
最近的研究表明,学生的分数知识预测了他们以后的代数知识。这项纵向研究调查了这种关系是否双向的,即早期代数知识是否预测了后来的分数知识,以及早期代数知识是否在分数教学中得到改善。我们跟踪了379名德国五年级和六年级的学生,在六到九个月的分数教学前后评估了他们的早期代数和分数知识。预测早期代数知识被证明比预测分数知识或研究开始时报告的年终数学成绩更能预测教学后分数知识(小到中等效应大小)。此外,在分数教学中,学生的早期代数知识有所提高(小效应量)。虽然先前的研究通常将分数视为代数的基础,但我们的发现通过提供证据补充了这一观点,证明相反的方向也是正确的:早期的代数知识可以预测后来的分数知识。尽管研究结果没有建立因果关系,但它们指出了加强早期代数思维可能有利于分数学习的可能性,而分数教学可能反过来提高代数知识。未来的实验研究应该探索如何利用这些发现来指导数学的发展。
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引用次数: 0
Connections between oral language processes and word reading and spelling in development: a complex, and still unfolding story 口语过程与发展中的单词阅读和拼写之间的联系:一个复杂的、仍在展开的故事。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-13 DOI: 10.1016/j.jecp.2025.106436
Gene P. Ouellette
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引用次数: 0
Delayed language access hampers but does not hinder visual statistical learning in deaf and hard of hearing children 语言学习迟缓妨碍但不妨碍聋哑和重听儿童的视觉统计学习
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-11 DOI: 10.1016/j.jecp.2025.106435
Anne Wienholz , Daniela Schönberger , Nele Jonasson , Rebecca Püppke , Patrick Bruns , Isabella Buckenmaier , Brigitte Röder , Barbara Hänel-Faulhaber
Statistical learning in deaf and hard of hearing (DHH) children is poorly understood and the impact of age of sign language acquisition has not been systematically investigated. In the present study, we examined visual statistical learning and transfer effects in early (age of sign language acquisition before the age of three years) and late (age of sign language acquisition after the age of three years) DHH child signers (aged 6–8 years) of German Sign Language, compared to age-matched hearing children. The children completed a visual artificial grammar learning task across three learning sessions, each consisting of alternating learning and test phases. In a fourth session, a new stimulus set was introduced using the same underlying artificial grammar to assess transfer abilities. Early signers tended to show higher learning performance in the first session, while no difference between early and late signers was observed in the third session. Compared to age-matched hearing children, both DHH groups were indistinguishable in the first session but performed lower in the third session. Crucially, only early signers successfully transferred the learned sequence rules to the new stimulus set comparable to hearing children. Correlation analyses indicated that higher visuo-spatial working memory capacity in DHH children was associated with higher performance during transfer and in late signers during learning as well. Overall, the findings suggest that early exposure to natural language input affects visual statistical learning abilities in DHH children.
聋儿和听障儿童的统计学习情况尚不清楚,手语习得年龄的影响尚未得到系统的研究。在本研究中,我们比较了DHH儿童(6-8岁)德语手语的早期(3岁前的手语习得年龄)和晚期(3岁后的手语习得年龄)的视觉统计学习和迁移效果,并与同龄听力儿童进行了比较。孩子们在三个学习阶段完成了一个视觉人工语法学习任务,每个学习阶段由交替的学习和测试阶段组成。在第四节中,引入了一个新的刺激集,使用相同的底层人工语法来评估迁移能力。在第一次会话中,早手语者表现出较高的学习成绩,而在第三次会话中,早手语者和晚手语者之间没有差异。与年龄匹配的听力儿童相比,两个DHH组在第一次会议中无法区分,但在第三次会议中表现较差。至关重要的是,只有早期的手语者才能成功地将所学到的序列规则转移到与听力正常的儿童相当的新刺激集上。相关分析表明,DHH儿童较高的视觉空间工作记忆容量与较高的迁移和学习后期手语表现相关。总的来说,研究结果表明,早期接触自然语言输入会影响DHH儿童的视觉统计学习能力。
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引用次数: 0
Children expect national group membership to guide food choice 孩子们期望国家团体的成员资格来指导他们选择食物
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-11 DOI: 10.1016/j.jecp.2025.106437
Bailey Immel, Shreya Sodhi, Zoe Liberman
Children have early-developing expectations that people from their culture will eat familiar foods (DeJesus et al., 2019). If this is due to children truly understanding that food is cultural, they should also have expectations about what people from other cultures eat: unfamiliar foods. Across two studies, we asked 4- to 9-year-old children (N = 219; Mage = 6.90 years) to sort familiar foods, unfamiliar foods, and disgust elicitors based on who they believed ate the item: people from their national ingroup, people from a national outgroup, both, or neither. We also measured children’s own food preferences and ingroup bias. Both studies provided evidence that children expected ingroup members to eat familiar foods and expected outgroup members to eat unfamiliar foods. Interestingly, children’s cultural expectations about food may also be linked to their own food preferences and bias. Children with stronger personal preferences for familiar foods over unfamiliar foods were more likely to think that only people from their ingroup would eat those foods, and children with more bias against a national outgroup were less likely to expect outgroup members to eat familiar foods. These results demonstrate that children do have a cultural understanding of food choice and that their personal experiences and preferences linked to their social expectations.
孩子们很早就期望来自他们文化的人会吃熟悉的食物(DeJesus et al., 2019)。如果这是由于孩子们真正理解食物是文化的,他们也应该对来自其他文化的人吃什么有期望:不熟悉的食物。在两项研究中,我们要求4到9岁的儿童(N = 219;年龄= 6.90岁)根据他们认为吃了熟悉的食物、不熟悉的食物和引起厌恶的食物:来自他们国家内群体的人,来自国家外群体的人,两者都吃,或者两者都不吃。我们还测量了孩子们自己的食物偏好和群体偏见。两项研究都提供了证据,表明儿童期望群体内成员吃熟悉的食物,期望群体外成员吃不熟悉的食物。有趣的是,儿童对食物的文化期望也可能与他们自己的食物偏好和偏见有关。与不熟悉的食物相比,对熟悉的食物有更强烈个人偏好的孩子更有可能认为只有他们内部群体的人才会吃这些食物,而对国家外群体有更大偏见的孩子不太可能期望外群体成员吃熟悉的食物。这些结果表明,儿童确实对食物选择有文化上的理解,他们的个人经历和偏好与他们的社会期望有关。
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引用次数: 0
Reduced perceptual span in dyslexic children: a gaze-contingent eye-tracking study 阅读困难儿童的知觉广度减少:一项注视条件下的眼动追踪研究。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-10 DOI: 10.1016/j.jecp.2025.106434
Antonin Rossier-Bisaillon , Julie Robidoux , Brigitte Stanké , Bruno Gauthier , Boutheina Jemel

Introduction

In typically developing 9-year-olds, the perceptual span—the region of text from which useful information is extracted during a single eye fixation—extends up to seven characters to the right of fixation. This parafoveal preview supports fluent reading by facilitating saccade planning and lexical preprocessing. However, the perceptual span in children with dyslexia remains undocumented, and findings in adults are inconsistent. While theoretical models suggest a reduced span in dyslexia, this study offers the first experimental test of this hypothesis in children.

Methods

14 dyslexic children aged 9- to 12-year-old and 24 age-matched controls participated in the present eye-tracking study. Using a gaze-contingent window paradigm, children read sentences aloud while the number of visible characters around the point of fixation was systematically manipulated. Reading speed, reading accuracy, fixation duration and saccade length were assessed across five window size conditions.

Results

Our results show a diminished impact of window sizes on the reading speed of children with dyslexia as compared to controls. Eye-tracking data confirmed an increased foveal load and reduced parafoveal processing for this group. In both groups, gaze-contingent windows did not impact reading accuracy.

Conclusion

Results are interpreted within the framework of the foveal load hypothesis, alongside prior evidence of reduced preview benefit and heightened visual crowding in dyslexia. In this view, the greater effort required for foveal word identification in dyslexic readers limits the attentional resources available for parafoveal processing, thereby constraining access to upcoming text and ultimately reducing the effective perceptual span during reading.
在正常发育的9岁儿童中,感知跨度——在单眼注视时提取有用信息的文本区域——向注视的右侧延伸至7个字符。这种旁中央凹预览通过促进扫视计划和词汇预处理来支持流畅的阅读。然而,儿童阅读障碍的知觉广度仍未得到证实,成人的研究结果也不一致。虽然理论模型表明阅读障碍患者的阅读时间会缩短,但这项研究首次在儿童身上对这一假设进行了实验测试。方法:对14名9 ~ 12岁的诵读困难儿童和24名同龄对照进行眼动追踪研究。使用注视随机窗口范式,孩子们大声朗读句子,而注视点周围可见字符的数量被系统地操纵。阅读速度、阅读准确性、注视时间和扫视长度在五个窗口大小条件下进行评估。结果:我们的研究结果显示,与对照组相比,窗口大小对失读症儿童阅读速度的影响减弱。眼动追踪数据证实,这组人的中央凹负荷增加,中央凹旁处理减少。在两组中,随凝视而定的窗口对阅读准确性没有影响。结论:研究结果在中央凹负荷假说的框架内得到解释,同时也有先前的证据表明,阅读障碍患者的预览效果降低,视觉拥挤加剧。从这个角度来看,阅读困难的读者在中央凹识别单词时需要付出更大的努力,这限制了旁中央凹处理的注意力资源,从而限制了对即将到来的文本的访问,最终减少了阅读过程中的有效感知广度。
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引用次数: 0
Sources of error in numerical estimation: Insights from the wisdom of crowds effect 数字估计中的误差来源:来自群体智慧效应的见解
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-08 DOI: 10.1016/j.jecp.2025.106414
Hyekyung Park , John E. Opfer
Could the average estimate of a class of kindergartners be more accurate than any adult estimate? Normally, yes: a “wisdom of crowds” (WoC) effect would be observed if individual estimates were independent and unbiased, leading any crowd of children to outperform any individual adult. However, children’s estimates have been proposed to be biased by logarithmic encoding of numerical value, which would undermine the WoC effect. Here, we examined the WoC effect to test whether estimates reflect bias (e.g., logarithmic encoding), noise (e.g., uncertainty), or both. In Study 1, 80 4- to 7-year-olds and 80 adults were asked to estimate the number of dots on a number line, and we found that WoC effects and effects of crowd size were stronger on 0–30 than 0–100 number-lines. In Study 2, 80 children and 80 adults completed a symbolic number-line task, and we found similar effects. In both studies, we also compared a crowd of less-advanced with individual more-advanced children. Again, the WoC effect was stronger on 0–30 than 0–100 number lines. Overall, results provide further evidence that development of numerical estimation involves reducing bias (especially for large numbers), not just reducing noise. Implications for theories of number representation are discussed.
一个幼儿园班级的平均估计会比任何成年人的估计更准确吗?通常情况下,答案是肯定的:如果个人的估计是独立且无偏见的,那么就会观察到“群体智慧”(WoC)效应,导致任何一群孩子的表现都优于任何一个成年人。然而,儿童的估计被认为是有偏差的数值的对数编码,这将破坏WoC效应。在这里,我们检验了WoC效应,以检验估计是否反映了偏差(如对数编码)、噪声(如不确定性),或两者兼而有之。在研究1中,80名4- 7岁儿童和80名成年人被要求估计数轴上的点的数量,我们发现WoC效应和人群规模效应在0-30比0-100数轴上更强。在研究2中,80名儿童和80名成人完成了一个象征性的数轴任务,我们发现了类似的效果。在这两项研究中,我们还比较了一群进展较差的孩子和个别进展较好的孩子。同样,WoC效应在0-30比0-100数轴上更强。总的来说,结果提供了进一步的证据,证明数值估计的发展涉及减少偏差(特别是对于大数),而不仅仅是减少噪声。讨论了数表示理论的含义。
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引用次数: 0
If someone is wrong but sincere, is it a lie? The role of objective falsity, intention, and in children's understanding of lying. 如果有人错了但很真诚,那是谎言吗?客观的虚假性、意图和在儿童对说谎的理解中的作用。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-01 Epub Date: 2025-08-08 DOI: 10.1016/j.jecp.2025.106350
Katarzyna Cantarero, Magdalena Król, Daria Gruberska, Maria Michalik, Gabriela Sorsa, Julia Żamejć, Sergio Moreno-Ríos

This study investigates how objective reality (truth vs falsity), intention (honest vs dishonest) and motivation (prosocial vs self-serving) affect lie labelling and moral judgment of lies. Using a comic-based task, we conducted a study with 5-6-year-olds and 9-10-year-olds (N = 194). Participants were presented with scenarios where a protagonist made either prosocial or self-serving statements that were truthful or false, with honest or deceptive intent. Results showed that younger children were more likely to judge objectively false statements as lies, while older children placed greater emphasis on the protagonist's intention. Prosocial lies were evaluated more positively than self-serving lies. However, contrary to prior research, prosocial lies were not less likely to be labeled as lies, but unlike in previous studies children were informed about the honest or dishonest intentions, which could prevent them from interpreting self-serving motivation as dishonest intentions. Additionally, lies were based on factual statements rather than opinions. Results of this research contribute to theory of mind, moral development, and social cognition research, offering insights into how children distinguish between truth and deception. The study also introduces a novel, language-independent tool for assessing children's understanding of deception, which may have applications in cross-cultural research and educational settings.

本研究探讨了客观现实(真实vs虚假)、意图(诚实vs不诚实)和动机(亲社会vs自私自利)如何影响谎言标签和对谎言的道德判断。采用基于漫画的任务,我们对5-6岁和9-10岁的儿童(N = 194)进行了研究。研究人员向参与者展示了一个场景,在这个场景中,主人公要么说亲社会的话,要么说自私自利的话,这些话是真实的,要么是虚假的,有诚实的意图,也有欺骗的意图。结果显示,年龄较小的孩子更有可能客观地将虚假陈述判断为谎言,而年龄较大的孩子则更重视主角的意图。亲社会谎言比自私自利的谎言得到更积极的评价。然而,与之前的研究相反,亲社会谎言被贴上谎言标签的可能性并不小,但与之前的研究不同,孩子们被告知诚实或不诚实的意图,这可以防止他们将自我服务动机解释为不诚实的意图。此外,谎言是基于事实陈述而不是观点。这项研究的结果有助于心理理论、道德发展和社会认知研究,为儿童如何区分真实和欺骗提供了见解。该研究还介绍了一种新的、独立于语言的工具,用于评估儿童对欺骗的理解,这可能在跨文化研究和教育环境中得到应用。
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引用次数: 0
Preparing 4th and 5th graders to learn algebra with worked examples and self-explanation prompts. 用实例和自我解释提示帮助四、五年级学生学习代数。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-12-01 Epub Date: 2025-08-08 DOI: 10.1016/j.jecp.2025.106348
Kelly M McGinn, Julie L Booth, Alexandra Huyghe

This study examined the effects of the MathByExample intervention, which integrates worked examples and self-explanation prompts into math worksheets to address 4th and 5th graders' misconceptions. Researchers conducted a year-long, classroom-based experiment in 58 U.S. classrooms, randomly assigning classrooms to experimental or control conditions. The study explored the intervention's impact on algebra readiness and the moderating effects of prior knowledge and intervention dosage. Results showed no significant overall impact of the intervention on foundational algebra knowledge (FAK) or preparation for future learning (PFL). However, further analysis provided key insights. For FAK scores, greater self-explanation prompt attempts improved learning, but only when students engaged with a high number of worksheets. Students with higher prior knowledge experienced a negative effect of attempting more worksheets, suggesting they may not benefit from excessive practice. Self-explanation attempts had a stronger positive effect for students with higher prior knowledge. For PFL scores, self-explanation attempts significantly improved PFL scores, but only for students with at least average prior knowledge, with the strongest effects seen in those completing more worksheets. These findings suggest that educators may benefit from actively incorporating the study and explanation of worked examples into elementary math instruction. To maximize their impact, teachers should regularly integrate worked examples into their lessons. Encouraging students to engage with worked examples through self-explanation may mitigate common misconceptions and enhance students' readiness for more advanced algebra concepts.

本研究考察了MathByExample干预的效果,该干预将工作示例和自我解释提示整合到数学工作表中,以解决四年级和五年级学生的误解。研究人员在美国58个教室进行了为期一年的以教室为基础的实验,随机将教室分配到实验或控制条件下。本研究探讨了干预对代数准备的影响,以及先验知识和干预剂量的调节作用。结果显示,干预对基础代数知识(FAK)或未来学习准备(PFL)没有显著的总体影响。然而,进一步的分析提供了关键的见解。对于FAK分数,更多的自我解释提示尝试提高了学习效果,但只有当学生参与大量的工作表时。拥有较高先验知识的学生尝试更多的工作表会产生负面影响,这表明他们可能不会从过多的练习中受益。自我解释尝试对具有较高先验知识的学生有更强的正向影响。就PFL分数而言,自我解释尝试显著提高了PFL分数,但仅适用于至少具有平均先验知识的学生,完成更多工作表的学生效果最强。这些发现表明,教育工作者可以从积极地将工作实例的研究和解释纳入小学数学教学中受益。为了最大限度地发挥其影响,教师应该定期将工作实例整合到他们的课程中。鼓励学生通过自我解释参与工作的例子可以减轻常见的误解,并提高学生对更高级的代数概念的准备。
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引用次数: 0
Brain response to CT-related touch in infants: Contribution of temperament and maternal touch 婴儿对ct相关触摸的脑反应:气质和母亲触摸的贡献
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-11-26 DOI: 10.1016/j.jecp.2025.106419
Eleonora Mascheroni , Denis Peruzzo , Alice Giubergia , Laura Cordolcini , Tommaso Ciceri , Isabella Lucia Chiara Mariani Wigley , Annalisa Castagna , Beatrice Riva , Florian Montano , Nivedita Agarwal , Rosario Montirosso
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引用次数: 0
Parental neural responses to threat impact children’s test anxiety 父母对威胁的神经反应会影响孩子的考试焦虑。
IF 2 2区 心理学 Q3 PSYCHOLOGY, DEVELOPMENTAL Pub Date : 2025-11-24 DOI: 10.1016/j.jecp.2025.106421
Shuliang Bai , Peibing Liu , Renlai Zhou
Test anxiety impacts students’ academic and psychological well-being, influenced not just by their own threat processing but also by their parents’ threat processing. This study aims to explore the association between parents’ threat processing and children’s test anxiety. The study initially recruited 53 parent–child dyads, and 45 dyads (N = 90) remained after data screening, comprising 20 children with high test anxiety (Mean age = 10.44 years) and their parents (Mean age = 38.75 years), and 25 children with low test anxiety (Mean age = 11.13 years) and their parents (Mean age = 38.36 years). All participants completed the emotional Stroop task and had their event-related potentials recorded when processing test-related and non-test-related threatening words, using the interference effects of the N2 and N450 as indicators of threat processing. Results showed that only under non-test-related threatening conditions did parents’ N2 and N450 interference effects negatively relate to children’s test anxiety levels, s suggesting that parents’ neural responses to general threat cues may play a role in shaping children’s anxiety and informing family-based interventions.
考试焦虑影响学生的学业和心理健康,不仅受到他们自己的威胁处理的影响,也受到父母的威胁处理的影响。本研究旨在探讨父母威胁处理与儿童考试焦虑的关系。本研究初始招募53对亲子对,经数据筛选后剩余45对(N = 90),其中高考试焦虑儿童20例(平均年龄10.44岁)及其父母(平均年龄38.75岁),低考试焦虑儿童25例(平均年龄11.13岁)及其父母(平均年龄38.36岁)。所有被试均完成情绪性Stroop任务,并记录其在处理测试相关和非测试相关威胁词时的事件相关电位,以N2和N450的干扰效应作为威胁处理的指标。结果表明,只有在非考试相关的威胁条件下,父母的N2和N450干扰效应与儿童的考试焦虑水平呈负相关,这表明父母对一般威胁线索的神经反应可能在塑造儿童的焦虑和为家庭干预提供信息方面发挥作用。
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引用次数: 0
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Journal of Experimental Child Psychology
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