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NASA-TLX

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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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Analisis Beban Kerja Mental dan Tingkat Kantuk Perawat Rawat Inap Rumah Sakit di Kota Bandung pada Era Adaptasi Kebiasaan Baru

Nichlaus Hizkia Albright Lewerissa; Paulus Sukapto; Clara Theresia Jurnal Rekayasa Sistem Industri, 2026, Vol. 15, Issue 2, pp. 158-167 https://doi.org/10.26593/jrsi.8432

چکیده

Purpose: The COVID-19 pandemic has increased the workload of medical personnel providing patient care, particularly inpatient nurses. Field interviews with nurses at hospitals in Bandung City indicated increased fatigue and sleepiness during the new normal adaptation period. This study aimed to measure mental workload and sleepiness among inpatient nurses in Bandung City. Methodology: A total of 275 inpatient nurses participated by completing the National Aeronautics and Space Administration Task Load Index (NASA-TLX) questionnaire to assess mental workload and the Karolinska Sleepiness Scale (KSS) to measure sleepiness. Results: Mental workload among inpatient nurses ranged from high to very high, with scores between 76.93 ± 13.18 and 81.36 ± 13.53. Hospital characteristics, gender, age, and marital status were identified as factors associated with excessive mental workload. KSS scores indicated that nurses were in the very alert to alert range after completing their duties. Furthermore, 60.73% of nurses experienced very high mental workload, while 68.73% were classified as very alert. Conclusion: The findings indicate the need for hospital management to improve working conditions through better shift scheduling, resource allocation, and equitable distribution of staff support facilities to address the needs of inpatient nurses. Originality: This study examines mental workload and sleepiness simultaneously among inpatient nurses in Bandung City and identifies factors associated with excessive mental workload, providing a basis for improving hospital workforce management during the new normal adaptation period.

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From Visualization to Adaptive Learning in Algorithms and Data Structures

از تجسم تا یادگیری تطبیقی در الگوریتم‌ها و ساختمان داده‌ها

Hadas Schwartz Chassidim; Noam Bar; Irina Rabaev Informatics in Education, 2026, Vol. 25, Issue 3, pp. 1-24 https://doi.org/10.15388/infedu.2606.042

چکیده

Computer science students are required to master data structures and algorithms, yet learning these topics often presents significant cognitive challenges. This study investigates whether a bundled package of adaptive personalization is associated with learning outcomes, perceived workload, and usability, using an existing educational visualization tool called VZOU (Visualization Zone of Understanding). The enhanced adaptive version of VZOU incorporates personalized learning paths structured around a visible learning progression map, enabling learners to monitor their progress, identify gaps, and take ownership of their learning path. Basic gamification features, Bloom-aligned progressive sequencing, and topic-specific formative quizzes are designed to support self-regulated learning through immediate feedback and motivational reinforcement. In a between-subjects study (N = 55), we compared control, non-adaptive, and adaptive groups. The adaptive group scored significantly higher on the post-test than the non-adaptive and control groups (mean 89.3 vs. 73.3 and 71.0 out of 100, respectively), and showed numerically but not statistically higher usability scores (SUS). Perceived mental workload showed a mixed pattern: the overall six-subscale NASA-TLX composite did not differ significantly by condition, though Mental Demand specifically was significantly higher in the adaptive group than in the control group, and a workload composite excluding self-rated success also differed significantly across conditions. The bundled adaptive VZOU package, combining a diagnostic-driven graph, gated progression, formative quizzes, and gamification, was associated with higher post-test performance, while raising certain aspects of perceived workload. As these components were not manipulated independently, the estimate reflects the package as a whole, not any single element.

دانشجویان علوم کامپیوتر ملزم به تسلط بر ساختمان داده‌ها و الگوریتم‌ها هستند، اما یادگیری این مباحث اغلب با چالش‌های شناختی قابل توجهی همراه است. این پژوهش بررسی می‌کند که آیا یک بسته جامع شخصی‌سازی تطبیقی با پیامدهای یادگیری، بار ادراک‌شده و قابلیت استفاده ارتباط دارد یا خیر، و از یک ابزار تجسم آموزشی موجود به نام VZOU (منطقه تجسم فهم) استفاده می‌کند. نسخه تطبیقی پیشرفته VZOU مسیرهای یادگیری شخصی‌سازی‌شده‌ای را در قالب یک نقشه پیشرفت یادگیری قابل مشاهده ارائه می‌دهد که به یادگیرندگان امکان می‌دهد پیشرفت خود را پایش کنند، شکاف‌ها را شناسایی نمایند و مالکیت مسیر یادگیری خود را بر عهده گیرند. ویژگی‌های ابتدایی بازی‌وارسازی، توالی تدریجی منطبق با بلوم و آزمون‌های تکوینی موضوع‌محور به منظور حمایت از یادگیری خودتنظیمی از طریق بازخورد فوری و تقویت انگیزشی طراحی شده‌اند. در یک مطالعه بین‌گروهی (N = ۵۵)، گروه کنترل، غیرتطبیقی و تطبیقی با یکدیگر مقایسه شدند. گروه تطبیقی در آزمون پس از مداخله به طور معناداری نمره بالاتری نسبت به گروه‌های غیرتطبیقی و کنترل کسب کرد (میانگین ۸۹٫۳ در مقابل ۷۳٫۳ و ۷۱٫۰ از ۱۰۰، به ترتیب) و همچنین از نظر نمرات قابلیت استفاده (SUS) به صورت عددی اما نه معنادار آماری بالاتر بود. بار ذهنی ادراک‌شده الگوی ترکیبی نشان داد: ترکیب شش‌زیرمقیاس NASA-TLX به طور معناداری بر اساس شرایط تفاوت نداشت، اگرچه تقاضای ذهنی به طور خاص در گروه تطبیقی نسبت به گروه کنترل به طور معناداری بالاتر بود و ترکیب بار کاری بدون موفقیت خودارزیابی‌شده نیز به طور معناداری بین شرایط تفاوت داشت. بسته تطبیقی VZOU که ترکیبی از نمودار مبتنی بر تشخیص، پیشرفت مرحله‌ای، آزمون‌های تکوینی و بازی‌وارسازی است، با عملکرد بالاتر در آزمون پس از مداخله همراه بود، در حالی که برخی جنبه‌های بار ادراک‌شده را افزایش داد. از آنجا که این مؤلفه‌ها به طور مستقل دستکاری نشدند، این برآورد منعکس‌کننده بسته به طور کلی است، نه هیچ عنصر منفردی.

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