JIPTEK : Jurnal Ilmiah Pendidikan Teknik dan Kejuruan
Vol 19, No 2 (2026): July

Timing as Signal: Submission Hour as a Predictor of Academic Performance in an Engineering Design Module

Pierre Eduard Hertzog (Central University of Technology)



Article Info

Publish Date
31 Jul 2026

Abstract

Learning management systems record the exact time students submit their work, yet this behavioral trace is rarely used to examine student performance. This study investigated whether the hour at which a student submits the most technically demanding formative assessment in an engineering design module predicts both that assignment mark and the final module outcome. Data were drawn from three consecutive cohorts (2023–2025) of students enrolled in Design Project III, a Level 6 module at the Central University of Technology, Free State, South Africa. Submission timestamps for 387 student-year records were extracted from the Blackboard Learning Management System and classified into four deadline-day time bands. Statistical analysis revealed a significant negative relationship between submission hour and Submission 2 mark (Pearson r = −0.21, p < .001), with students who submitted in the last hour (16:00–17:00) scoring a mean of 54.32% compared with 64.22% for morning submitters (a gap of 9.9 percentage points). This effect carried through to the final module mark (r =−0.15, p = .003). Critically, no comparable effect was found at the summative final submission (p =.619), confirming that the relationship is specific to the intermediate, high-complexity assessment stage. These findings suggest that submission timing may serve as a practical early warning indicator of academic risk in engineering design modules.

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Journal Info

Abbrev

jptk

Publisher

Subject

Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Engineering Mechanical Engineering

Description

JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan is a scientific publication that intended to facilitate articles and scholarly writings of empirical research in the field of Vocational and Engineering Education. JIPTEK is open for academia, students, researchers, and practitioners who aim to ...