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schema construction

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Construction of a hierarchical linear regression prediction model for classical Chinese poetry writing ability development

时培根; Lei Zheng PLoS ONE, 2026, Vol. 21, Issue 10, pp. e0361497 https://doi.org/10.1371/journal.pone.0361497

چکیده

Although classical poetry is central to Chinese language education, how poetry learning is linked to writing development has rarely been characterized empirically. This one-year longitudinal study followed 1,920 students in Grades 3–6 from 48 classes in 12 primary schools across four waves and applied a four-level growth model (measurement occasions nested within students, students within classes, and classes within schools). The cognitive load components were indexed provisionally by NASA-TLX subscales, and results that depend on their distinction are interpreted as preliminary. Eight confirmatory tests were controlled with the Holm procedure and all remaining analyses were reported as exploratory with Benjamini-Hochberg control; a random-intercept cross-lagged panel model examined within-person lagged associations, which inform rather than establish the ordering of the modeled associations; and the 12-school highest level was examined with leave-one-school-out refits, a wild cluster bootstrap, prior sensitivity analyses, a school fixed-effects model, and a calibrated Monte Carlo simulation. Intrinsic (β = −0.41) and extraneous (β = −0.49) cognitive load were negatively and germane cognitive load (β = 0.45) positively associated with writing ability (Holm-adjusted p < .001), and schema construction, imagery processing, and emotional resonance carried statistical indirect associations totaling 0.587 (76.2% of the total association). The interaction of teaching method with cognitive load ( γ = 0.47, Holm-adjusted p = .011) was retained under all small-cluster sensitivity analyses, whereas the interactions with grade and class environment were exploratory and the school-level variance component was imprecisely estimated, and writing ability followed a mildly decelerating quadratic trajectory ( π 2 = −0.17 points per wave², Holm-adjusted p < .001). With imputation, centering, model reselection, refitting, and BLUP computation confined to the training folds, prediction for new students in the sampled classes and schools reached R 2 = 0.847 and RMSE = 4.28, meeting the preset RMSE target, whereas three-band accuracy (80.3%) fell short of the preset 85% target, and prediction for unseen classes and schools reached R 2 = 0.768 and 0.656. The findings characterize the multilevel associations between classical poetry learning and writing development and support instructional recommendations restricted to the confirmatory results.

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Screen exposure and cognitive outcomes in school-aged children and adolescents: a narrative review through the lens of Cognitive Load Theory

مواجهه با صفحه‌نمایش و پیامدهای شناختی در کودکان و نوجوانان سنین مدرسه: مروری روایتی از منظر نظریه بار شناختی

Hiya Al Kalbani; Erin Ann Kitt-Lewis Frontiers in Developmental Psychology, 2026, Vol. 4 https://doi.org/10.3389/fdpys.2026.1958088

چکیده

The increasing integration of digital media into children's lives has raised concerns about possible associations between screen exposure and cognitive development. This narrative review synthesizes empirical evidence published from 2014 to 2025 on associations between screen exposure and attention, memory, executive function, and related developmental outcomes among school-aged children (6–11 years) and adolescents (12–18 years) and interprets the findings through Cognitive Load Theory. Searches of PubMed, PsycINFO, and Google Scholar were conducted in May 2025 and updated in June 2025. Following duplicate removal and screening by one reviewer, 13 empirical studies were included. The evidence encompassed cross-sectional, longitudinal, neuroimaging, and Mendelian randomization designs. Higher or poorly structured screen exposure was generally associated with attention difficulties, weaker working memory or executive function, academic challenges, and differences in brain regions involved in cognitive control. However, findings were not uniform: interactive, purposeful, and developmentally appropriate digital activities were sometimes associated with neutral or beneficial cognitive outcomes. Cognitive Load Theory offers a plausible interpretation in which rapid, distracting, or multitasked media increases extraneous cognitive load and leaves fewer working-memory resources for task-relevant processing and schema construction. Because most included studies were observational and screen exposure was measured inconsistently, the evidence does not establish that screen use directly causes cognitive impairment. Future research should use longitudinal or experimental designs, objective and multidimensional measures of digital use, and direct measures of cognitive load. Guidance for families and educators should consider content, context, timing, and purpose in addition to duration.

افزایش ادغام رسانه‌های دیجیتال در زندگی کودکان، نگرانی‌هایی را درباره ارتباطات احتمالی بین مواجهه با صفحه‌نمایش و رشد شناختی ایجاد کرده است. این مرور روایتی، شواهد تجربی منتشرشده از سال ۲۰۱۴ تا ۲۰۲۵ را درباره ارتباط بین مواجهه با صفحه‌نمایش و توجه، حافظه، عملکرد اجرایی و پیامدهای رشدی مرتبط در کودکان سنین مدرسه (۶ تا ۱۱ سال) و نوجوانان (۱۲ تا ۱۸ سال) گردآوری و یافته‌ها را از منظر نظریه بار شناختی تفسیر می‌کند. جستجوها در پایگاه‌های PubMed، PsycINFO و Google Scholar در ماه مه ۲۰۲۵ انجام و در ژوئن ۲۰۲۵ به‌روزرسانی شد. پس از حذف موارد تکراری و غربالگری توسط یک مرورگر، ۱۳ مطالعه تجربی وارد شدند. شواهد شامل طرح‌های مقطعی، طولی، تصویربرداری عصبی و تصادفی‌سازی مندلی بود. مواجهه بیشتر یا ساختارنیافته با صفحه‌نمایش عموماً با دشواری‌های توجه، ضعف حافظه کاری یا عملکرد اجرایی، چالش‌های تحصیلی و تفاوت در نواحی مغزی مرتبط با کنترل شناختی همراه بود. با این حال، یافته‌ها یکنواخت نبودند: فعالیت‌های دیجیتال تعاملی، هدفمند و متناسب با رشد گاهی با پیامدهای شناختی خنثی یا سودمند همراه بودند. نظریه بار شناختی تفسیر معتبری ارائه می‌دهد که در آن رسانه‌های سریع، حواس‌پرت‌کننده یا چندوظیفه‌ای، بار شناختی زائد را افزایش داده و منابع حافظه کاری کمتری برای پردازش مرتبط با تکلیف و ساخت طرح‌واره باقی می‌گذارند. از آنجا که بیشتر مطالعات واردشده مشاهده‌ای بودند و مواجهه با صفحه‌نمایش به‌طور ناسازگار اندازه‌گیری شده بود، شواهد موجود اثبات نمی‌کند که استفاده از صفحه‌نمایش مستقیماً موجب اختلال شناختی می‌شود. پژوهش‌های آینده باید از طرح‌های طولی یا تجربی، سنجه‌های عینی و چندبعدی استفاده دیجیتال و سنجه‌های مستقیم بار شناختی بهره ببرند. راهنمایی برای خانواده‌ها و مربیان باید علاوه بر مدت زمان، محتوا، زمینه، زمان‌بندی و هدف را نیز مدنظر قرار دهد.

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