{"title":"Students' development of place value understanding in primary school.","authors":"Moritz Herzog, Annemarie Fritz","doi":"10.1093/chidev/aacag139","DOIUrl":"https://doi.org/10.1093/chidev/aacag139","url":null,"abstract":"<p><p>Understanding place value (e.g., how digits represent tens, hundreds, and thousands) is a key foundation for children's later success in mathematics. However, many children struggle to fully grasp how the base-ten system works. Developmental trajectories can inform formative assessment and structure instruction of place value understanding. In this paper, the longitudinal validity of a hierarchical model of typical steps in children's development of place value understanding was challenged. Students' development of place value understanding was assessed during a longitudinal study across one school year (N = 195; 87 girls; Grades 3 and 4) at three measurement time points. Significant gains in place value understanding over the course of 1 year were found at the group and individual level. Individual development was visible in terms of raw scores as well as the level of place value understanding in terms of a development model. Whereas prior knowledge had no effect on the development of place value understanding, intelligence was positively associated with a steeper development. Individual developmental trajectories emphasize the heterogeneity of place value development. The results support the utility of the model as a developmental progression of place value understanding for guiding instruction and assessment.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148677325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Angélica Mateus-Moreno, Jorge-Luis Guirado-Moreno, Raül López-Penadés, Eva Aguilar-Mediavilla, Daniel Adrover-Roig
{"title":"Emotion regulation in children and adolescents with developmental language disorder: A systematic review and meta-analysis.","authors":"Angélica Mateus-Moreno, Jorge-Luis Guirado-Moreno, Raül López-Penadés, Eva Aguilar-Mediavilla, Daniel Adrover-Roig","doi":"10.1093/chidev/aacag141","DOIUrl":"https://doi.org/10.1093/chidev/aacag141","url":null,"abstract":"<p><p>This systematic review and meta-analysis provides the first comprehensive synthesis of research on emotion regulation (ER) in children and adolescents with developmental language disorder (DLD), based on 16 independent samples (NDLD = 1,616; ages 5-16). Individuals with DLD showed significantly greater ER difficulties than typically developing peers, representing a medium effect size (g = 0.563). This effect remained statistically significant, although reduced to a small-to-medium effect size, in sensitivity analyses excluding studies from the same research group (g = 0.317). Informant discrepancies emerged, with teachers reporting more ER difficulties than parents and children's self-reports. No clear evidence of publication bias was observed on formal testing; however, converging evidence from small-study effects, risk of bias analyses, and publication year trends suggests that the observed effect size may represent an overestimate of the true effect. These findings underscore the need for more rigorous, theory-driven, multi-method research to accurately estimate the magnitude of ER difficulties in DLD.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148677275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jingyun Wang, Tessa Kaufman, Stefanos Mastrotheodoros, Susan Branje
{"title":"Bidirectional associations between parental need support, conflict with parents, and adolescents' autonomy: A daily diary study.","authors":"Jingyun Wang, Tessa Kaufman, Stefanos Mastrotheodoros, Susan Branje","doi":"10.1093/chidev/aacag142","DOIUrl":"https://doi.org/10.1093/chidev/aacag142","url":null,"abstract":"<p><p>Autonomy is a core developmental task of adolescence, shaped by daily parent-adolescent interactions involving need support and conflict. Guided by Self-Determination Theory, this study examined the bidirectional day-to-day associations between adolescents' perceived parental need support, conflict with parents, and autonomy. Using a daily diary design, this study employed a Dynamic Structural Equation Modeling on a sample of 286 Dutch adolescents (Mage = 11.60, SD = 0.47 at Wave 1), who were followed for one week in four measurement waves (28 days total). The results indicated that, at the within-person level, parental need support was positively associated with adolescent autonomy experiences (perceived choice and self-concept clarity) on the same day. Across days, parental need support and self-concept clarity showed bidirectional associations, such that increases in one predicted increases in the other the following day. In contrast, parental need support predicted next-day perceived choice, but not vice versa. Conflict with parents was negatively associated with autonomy on the same day, but showed no lagged effects. Together, these findings highlight the predictive role of parental need support in adolescents' daily autonomy experiences, and suggest that distinct facets of autonomy may display different temporal dynamics in their associations with parental need support.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148668723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kelsey L West, Ramya Manikkan, Karen E Adolph, Catherine S Tamis-LeMonda
{"title":"Opportunities for verb learning: Objects, infant locomotion, and verb input.","authors":"Kelsey L West, Ramya Manikkan, Karen E Adolph, Catherine S Tamis-LeMonda","doi":"10.1093/chidev/aacag083","DOIUrl":"https://doi.org/10.1093/chidev/aacag083","url":null,"abstract":"<p><p>Infants engage with a variety of objects in their environments that offer unique opportunities for action and learning. This study experimentally tested 3 hypotheses: (1) Different objects instigate different types of infant action, and (2) caregivers offer contingent verb input, such that (3) infants' actions temporally align with caregiver verb input. Thirty infant-mother dyads (12-22 month-old, 14 girls, 21 White, 4 Black, 2 Asian, 3 Hispanic, 3 Multiracial) played in two conditions-with gross-motor toys to incentivize locomotor play and fine-motor toys to incentivize stationary play. As hypothesized, infant locomotion and caregiver verb use differed by condition. Moreover, infants' in-the-moment locomotion temporally aligned with caregivers' verbs. Effects ranged from η2 = .416-.778. Findings provide experimental evidence that objects for play shape infant actions and caregiver verb input.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148663469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Children's and adolescents' moral judgments predict confrontations of gender-based science leadership inequalities.","authors":"Marley B Forbes, Anusha Kumar, Melanie Killen","doi":"10.1093/chidev/aacag134","DOIUrl":"https://doi.org/10.1093/chidev/aacag134","url":null,"abstract":"<p><p>Prejudice confrontations can be effective in reducing bias, but few studies have examined them in childhood. This study, in the United States, investigated 8- to 14-year olds' (N = 196; Mage = 11.64; 114 girls, 82 boys; 33.7% White, 27.6% Multiracial/Multiethnic, 12.2% Black, 8.2% Latino, 7.7% Asian, 4.5% Other, and 6.1% not reported) evaluations of, reasoning about, and confrontations of gender-based Science, Technology, Engineering, and Mathematics (STEM) inequalities within peer groups. Data were collected in 2024. Participants who evaluated inequalities more negatively were more likely to confront them. Evaluations of inequalities that disadvantaged boys, but not girls, were more positive with age. Finally, evaluations of inequalities uniquely predicted participants' use of different reasoning categories to justify their evaluations. These findings demonstrate children's and adolescents' capacities to make STEM contexts more equitable for all children.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to: Three-year-old children understand the false beliefs of their partner in collaborative decision making.","authors":"","doi":"10.1093/chidev/aacag138","DOIUrl":"10.1093/chidev/aacag138","url":null,"abstract":"","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Merlin Nieterau, Geertjan Overbeek, Erika Lunkenheimer, Alithe van den Akker, Patty Leijten
{"title":"Does parental warmth protect children against parental harshness? An experience sampling study of disruptive child behavior.","authors":"Merlin Nieterau, Geertjan Overbeek, Erika Lunkenheimer, Alithe van den Akker, Patty Leijten","doi":"10.1093/chidev/aacag135","DOIUrl":"https://doi.org/10.1093/chidev/aacag135","url":null,"abstract":"<p><p>This study examined whether parental warmth protects against the effects of parental harshness on disruptive child behavior. Between Spring 2023 and Summer 2024, community sample parents (N = 205; 93% were Dutch) of children (Mage = 5.84 years, 53% girls) reported up to 6 times a day for 12 consecutive days on parental harshness, warmth, and disruptive child behavior. Momentary increases in parental harshness and decreases in warmth predicted more subsequent disruptive child behavior. Overall levels of warmth did not buffer the effects of momentary parental harshness on disruptive child behavior. Findings suggest that moment-to-moment fluctuations in parenting can immediately influence child behavior, thereby providing support for parenting programs aiming to increase warmth as well as reduce harshness.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148629653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction to: Leveraging an intensive time series of young children's movement to capture impulsive and inattentive behaviors in a preschool setting.","authors":"","doi":"10.1093/chidev/aacag136","DOIUrl":"https://doi.org/10.1093/chidev/aacag136","url":null,"abstract":"","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Young-Suk Grace Kim, Molly Leachman, Sarah Herrera
{"title":"Developing listening comprehension through multi-component instruction: Results from the Story Detective intervention.","authors":"Young-Suk Grace Kim, Molly Leachman, Sarah Herrera","doi":"10.1093/chidev/aacag133","DOIUrl":"https://doi.org/10.1093/chidev/aacag133","url":null,"abstract":"<p><p>We conducted a modified cluster randomized controlled trial examining Story Detective, a multicomponent listening comprehension intervention, with 351 students (47% girls; pretest Mage = 5.55; 39% Hispanic, 32% White, 16.5% Asian-American, 6.8% multiracial, 2.6% African-American) in the U.S. Classes were randomly assigned to Story Detective or business-as-usual conditions. Results showed significant effects for Story Detective on proximal vocabulary (g = 1.28), comprehension monitoring (g = 0.27), and distal grammatical knowledge (g = 0.26), but not on distal listening comprehension. Students with stronger initial vocabulary benefited more. Classroom observations revealed business-as-usual instruction included vocabulary and inferential questioning but lacked comprehension monitoring and grammatical instruction-precisely where significant effects occurred. Findings suggest multicomponent interventions improve specific skills, but transfer to comprehension may require extended implementation.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qingyang Liu, Mary C Davis, Leah D Doane, Kathryn Lemery-Chalfant
{"title":"Intergenerational transmission of effortful control and reactive control: Evidence from a twin study.","authors":"Qingyang Liu, Mary C Davis, Leah D Doane, Kathryn Lemery-Chalfant","doi":"10.1093/chidev/aacag132","DOIUrl":"https://doi.org/10.1093/chidev/aacag132","url":null,"abstract":"<p><p>This study examined the intergenerational transmission of effortful control and reactive control between parents and their children in middle childhood. We further partitioned environmental and genetic contributions to individual differences in effortful control and reactive control. Participants included 935 twins (51.9% female, 53.2% White, Myear 8 = 8.43 years, SD = 0.68, and Myear 10 = 10.61 years, SD = 1.14) from the Arizona Twin Project. When children were age 8, mothers and fathers reported their own activation control, attentional focusing, inhibitory control, and effortful control; at ages 8 and 10, the primary caregivers (93.3% mothers) and teachers rated twins' activation control, attentional focusing, inhibitory control, and impulsivity. Regression models showed that higher maternal effortful control was consistently associated with better twin activation control, attentional focusing, and inhibitory control, and lower impulsivity across waves and informants, whereas paternal attentional focusing was linked to twins' attentional focusing at age 10. Bivariate twin models revealed distinct etiological patterns: activation control showed stable and novel genetic influences; attentional focusing was largely heritable; inhibitory control exhibited shared environmental effects; and impulsivity showed strong genetic stability and unique shared environmental influences. Findings identify tailored genetic and environmental targets for intervention.</p>","PeriodicalId":10109,"journal":{"name":"Child development","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148599754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}