Algorithmic Drift and Representation Biases under Selective Consent
The enforcement of strict consent mechanisms under European data protection jurisprudence creates structural challenges for educational retention modeling that standard algorithmic adjustments cannot easily resolve. Under Article 7 of the General Data Protection Regulation, consent must remain revocable and distinct from service provision, precluding institutions from mandating data tracking as a prerequisite for enrollment [6]. This regulatory environment transforms the learning analytics corpus into an opt-in distribution where data subjects systematically weigh perceived institutional utility against personal privacy risks [2]. When learners facing academic difficulty exhibit higher tendencies to decline data tracking or withdraw from online monitoring, the resulting training sets manifest substantial class imbalance and distorted behavioral distributions [5]. Consequently, statistical models optimized on observed records develop decision boundaries calibrated toward engaged cohorts while underperforming on disengaged, high-risk populations [5]. This divergence demonstrates that legal compliance and empirical generalizability exist in profound tension, as statutory data minimization inherently restricts the broad feature spaces required to detect subtle early-warning indicators across heterogeneous student populations [2], [6]. Addressing these limitations requires acknowledging the epistemic boundaries of consent-filtered analytics rather than treating observed administrative records as representative representations of entire student cohorts.