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Participant inclusion, data completeness, and score reliability
An initial cohort of 204 students across all class sections was invited to participate, yielding 198 consenting individuals. Fourteen cases were subsequently excluded due to course withdrawal during the protocol window or incomplete data linkage across the observation, reflection, and platform records. Consequently, the final analytic sample comprised 184 students. Participant characteristics, weekly completion rates, and overall data completeness are detailed in Table 3.
Over the 4-week program, 24 class sessions were observed, generating a synchronized learning-analytics record for each participant. Of the 736 expected reflective reports, 701 were submitted within the 72-h window, 18 were submitted late, and 17 were missing. Ultimately, 171 students successfully completed all weekly reflections on time. Learning analytics were completely extracted for the final 184 participants after filtering out instructor accounts, duplicate entries, and out-of-window activities.
Observational coding remained highly stable throughout the protocol period. Inter-rater reliability for the six behavioral indices of classroom observation demonstrated Cohen's kappa values ranging from 0.76 to 0.84, with overall agreement during drift tests exceeding 86%. For the reflective expression scores, intra-class correlation coefficients (ICCs) across the four dimensions varied between 0.82 and 0.89. Table 4 presents the descriptive statistics and reliability indices for the primary study variables.
Classroom behavioral observation
Observed classroom behaviors exhibited gradual improvement over the 4-week protocol. As illustrated in Figure 2, on-task attention, verbal participation, and peer collaboration were significantly higher in Week 4 compared to the initial weeks. Specifically, verbal participation increased from 0.18 ± 0.09 in the first week to 0.24 ± 0.10 by the fourth week (p < 0.05). Peer collaboration similarly rose from 0.29 ± 0.11 to 0.35 ± 0.12 (p = 0.006). On-task attention demonstrated a highly significant improvement, shifting from 0.71 ± 0.12 to 0.76 ± 0.11 (p < 0.001).
Conversely, task-focused note-taking or device use showed only marginal weekly increases that did not reach statistical significance (p = 0.08). Help-seeking behavior remained consistently low throughout the observation period, displaying no significant time effect (p = 0.21). Off-task distraction significantly decreased from 0.14 ± 0.08 in Week 1 to 0.11 ± 0.07 in Week 4 (p = 0.03). Overall, the composite Observed Classroom Engagement Index rose significantly from 0.52 ± 0.10 during the first week to 0.58 ± 0.11 by the final week (p < 0.001).
Reflective expressions over the 4-week protocol
Reflective expression evolved over the study period, though the magnitude of change varied across its sub-dimensions. As shown in Figure 3, the total reflection score increased from Week 1 to 7.2 ± 1.9 by Week 4 (p < 0.001).
Analytic depth was notably greater at the end of Week 4 compared to the first two weeks (p < 0.001). Similarly, social-prosocial meaning grew from 1.08 ± 0.55 to 1.54 ± 0.60 (p < 0.001), and self-regulatory orientation increased from 1.42 ± 0.63 to 1.69 ± 0.65 (p < 0.05). In contrast, descriptive specificity exhibited a slight upward trend, from 2.14 ± 0.57 to 2.24 ± 0.55, which was not statistically significant (p = 0.09).
The submissions averaged between 223 and 231 words per entry throughout the protocol. Of the 736 expected reflective reports, 18 were submitted late, and 17 were missing; low-information entries and responses that omitted the contextual-cause or future-action/social-impact prompt were flagged in the database. These cases were retained as feasibility indicators and were excluded only from week-specific reflection-quality models when the relevant score could not be assigned.
Learning analytics patterns during the study window
Platform activity metrics exhibited considerable inter-individual variance over the 4-week window, as depicted in Figure 4.
Over the total period, students averaged 9.7 ± 2.4 active days on the platform. The mean number of distinct resource views was 27.3 ± 8.6, with students opening an average proportion of 0.81 ± 0.14 of the assigned resources. Furthermore, the mean discussion reply count was 4.8 ± 2.7. The average assignment punctuality and mean video completion rate were 0.86 ± 0.18 and 0.79 ± 0.17, respectively. The proportion of late-night platform access averaged 0.12 ± 0.09.
Notably, discussion replies and assignment punctuality demonstrated more pronounced positive correlations with other participation indicators, despite the wide distribution of punctuality scores.
Cross-association of observations, reflections, and learning data
The three data sources demonstrated meaningful, though non-uniform, associations. As shown in Figure 5, students with higher Observed Classroom Engagement Indices tended to achieve higher total reflection scores. In the section-adjusted model, observed classroom engagement positively predicted the reflection total score (β = 0.34, p < 0.001).
Among the learning analytics variables, discussion replies and assignment punctuality were significantly and positively correlated with reflection quality. As detailed in Table 5, discussion replies positively predicted the reflection total score (β = 0.19, p = 0.013), as did assignment punctuality (β = 0.17, p = 0.028). While raw resource views and the proportion of assigned resources opened showed positive associations initially, these correlations weakened significantly after adjusting for confounding variables. Late-night access proportion showed no significant association with the reflection total score (p = 0.18).
The data also revealed mild cross-correlations between observed classroom behavior and specific platform activities; for example, raw resource views correlated only marginally with the Observed Classroom Engagement Index. Furthermore, students who engaged more frequently in group discussions exhibited higher verbal communication, while those with higher behavioral regulation displayed less procrastination in task submissions.
Changes in prosocial intention
Prosocial intention demonstrated significant growth from baseline to post-test. The mean prosocial intention score increased from 3.61 ± 0.53 at baseline to 3.84 ± 0.50 following the 4-week protocol (p < 0.001). Figure 6 illustrates the paired distribution and adjusted associations.
In the final adjusted model, a higher Observed Classroom Engagement Index predicted a greater increase in post-protocol prosocial intention relative to the baseline score (β = 0.21, p < 0.05). Among the reflective dimensions, social-prosocial meaning exerted the most substantial independent effect on post-protocol prosocial intention (β = 0.29, p < 0.001). Although verbal participation exhibited a positive unadjusted correlation with post-test prosocial outcomes, this association lost statistical significance after controlling for baseline values (p = 0.09). Finally, the late-night access rate remained unrelated to post-protocol prosocial intention (p = 0.27).
Observed implementation constraints and null findings
The implemented study produced several suboptimal but informative outcomes rather than protocol-stopping failures. No observed session required exclusion because of an observer kappa below 0.70, no learning-analytics field remained unavailable after the final export, and no visibility problem exceeded the prespecified missingness threshold. The observed constraints were concentrated in reflection completion and in null or marginal behavioral findings: 18 reflections were submitted late, 17 expected reflections were missing, task-focused note-taking/device use showed only a marginal increase (p = 0.08), help-seeking showed no significant time effect (p = 0.21), and late-night access was not associated with reflection total score or post-protocol prosocial intention.
These findings were retained because they describe implementation feasibility and boundary conditions of the protocol. Late or missing reflections were reported in the participant-flow and data-completeness summaries; marginal or null associations were reported without selective omission; and the troubleshooting procedures in the Protocol section specify how hypothetical failures such as observer drift, obstructed visibility, or missing LMS fields should be handled in future implementations.
De-identified analysis files, the data dictionary, analysis scripts, blank coding forms, reflection prompts, reflection rubric, and the prosocial-intention questionnaire have been deposited in Zenodo: https://zenodo.org/records/20607517. Identifiable raw classroom video, names, institutional IDs, and unredacted reflection text were not publicly released.

Figure 1: Study workflow and multi-source data integration protocol. (A) Participant recruitment, consent collection, and study-ID assignment across two undergraduate courses and six class sections. (B) The 4-week data collection cycle: weekly classroom observation, reflective writing task, and synchronized learning-analytics capture window. (C) Three parallel data streams: classroom behavioral observation, reflective expression scoring, and de-identified learning-platform records. (D) Construction of the participant-level master dataset and the week-level long-format database, yielding the primary research outputs: observed classroom engagement index, reflection score, and prosocial intention. Please click here to view a larger version of this figure.

Figure 2: Weekly changes in observed classroom behavior during the 4-week protocol. (A) On-task attention. (B) Verbal participation. (C) Peer collaboration. (D) Task-focused note-taking or task-focused device use. (E) Off-task distraction. (F) Help-seeking. Values are weekly student-level proportion scores derived from interval-based classroom observations. Points indicate weekly means, and error bars indicate standard deviations. Please click here to view a larger version of this figure.

Figure 3: Weekly changes in reflective expression across the four reflective submissions. (A) Descriptive specificity. (B) Analytic depth. (C) Self-regulatory orientation. (D) Social-prosocial meaning. (E) Total reflection score. Reflection scores were assigned by two blinded coders using the prespecified rubric. Points indicate weekly means, and error bars indicate standard deviations. Please click here to view a larger version of this figure.

Figure 4: Distribution of learning-analytics indicators during the 4-week study window. (A) Active days on the learning platform. (B) Resource views. (C) Proportion of assigned resources opened. (D) Discussion replies posted. (E) Mean video completion rate. (F) Assignment punctuality. (G) Late-night access proportion. All values were calculated over the same 4-week window used for classroom observation and reflective writing. Violin plots show student-level distributions, and box plots indicate medians and interquartile ranges. Please click here to view a larger version of this figure.

Figure 5: Associations among observed classroom engagement, reflective expression, and selected learning-analytics indicators. (A) Association between the Observed Classroom Engagement Index and reflection total score. (B) Association between discussion replies posted and reflection total score. (C) Association between assignment punctuality and reflection total score. (D) Association between verbal participation and reflection total score. Trend lines represent fitted linear associations; shaded bands indicate 95% confidence intervals. Please click here to view a larger version of this figure.

Figure 6: Change in prosocial intention and its associations with classroom engagement and reflective meaning. (A) Paired distribution of baseline and post-protocol prosocial intention scores. Lines connect paired pre/post scores from the same student. (B) Association between the Observed Classroom Engagement Index and post-protocol prosocial intention after controlling for the baseline score. (C) Association between social-prosocial meaning and post-protocol prosocial intention. (D) Association between verbal participation and post-protocol prosocial intention. Shaded bands in panels B-D indicate 95% confidence intervals. Please click here to view a larger version of this figure.
Table 1: Student-level classroom observation indicators and coding rules. The table details the operational definitions and coding criteria for on-task attention, verbal participation, peer collaboration, task-focused note-taking or device use, off-task distraction, and help-seeking. The 70 min coding window, 20-s scan/10-s recording cycle, cluster-scanning procedure, missing-visibility rule, and OCEI formula are described in the Protocol section. Please click here to download this Table.
Table 2: Reflective expression scoring framework, score-level examples, and learning-analytics variable definitions. The table outlines the scoring rubric for reflective texts, including examples of scores 0, 1, 2, and 3 for each reflective dimension, and the operational definitions for extracted learning-analytics variables. Reflective components include descriptive specificity, analytic depth, self-regulatory orientation, social-prosocial meaning, overall reflection score, word count, and submission status. Learning analytics comprise active days, resource views, proportion of assigned resources opened, discussion replies posted, mean video completion rate, assignment punctuality, and late-night access proportion. Please click here to download this Table.
Table 3: Participant characteristics, inclusion flow, and data completeness. The table summarizes participant eligibility, consent rates, exclusion criteria, final sample size, and data completeness across the three data sources. It reports baseline demographic characteristics alongside expected reflective entries, on-time submissions, late submissions, missing reflections, and successful learning-analytics extractions. Values are presented as n (%) unless otherwise specified. Rounding may result in percentages not summing exactly to 100%. Following the protocol, late reflections are archived but excluded from week-specific reflection analyses. Complete learning-analytics extraction denotes the successful retrieval of de-identified study-window records following the removal of instructor accounts, duplicate entries, and out-of-window events. Please click here to download this Table.
Table 4: Descriptive statistics and test-reliability scores of the primary study variables. The table presents week-specific mean values, standard deviations, and reliability indices for observed classroom behavior, reflective expression, learning analytics, and prosocial intention. The reliability of classroom observation data is evaluated using Cohen's kappa. Reflection scoring reliability is presented as intra-class correlation coefficients (ICCs) for double-scored texts. The internal consistency of the prosocial intention measure is reported using Cronbach's α. Learning-analytics variables are calculated over the identical 4-week period utilized for observations and reflections. Please click here to download this Table.
Table 5: Multivariable associations among observed classroom engagement, reflective expression, learning analytics, and prosocial intention. The table details the inferential models utilized in the main analyses. Presents multivariable predictors of the reflection total score, adjusted predictors of post-protocol prosocial intention (controlling for baseline levels), and selected unadjusted associations. β values represent unstandardized regression coefficients. All multivariable models are adjusted for class section. Standard errors (SE), 95% confidence intervals (CI), and p-values are provided for all estimates. Please click here to download this Table.