Machine Learning Model Predicts Smartphone Addiction From Daily Usage Patterns

Smartphones have become so deeply woven into daily life that the boundary between healthy use and harmful dependence has grown genuinely difficult to see. A new study published in SN Social Sciences by Vijaykumar R. Urkude, S. Vairachilai, Shubhangi Vijay Urkude, and Shri Venkatesh Babu Bharaneedharan tackles that boundary with an unusual combination of tools: classical machine learning classifiers trained on behavioral and usage-based features, paired with a full suite of explainable artificial intelligence techniques designed to make the resulting predictions transparent rather than opaque. The work arrives at a moment when concerns about problematic smartphone use among young people are intensifying, with prior research linking heavy use to poorer academic performance, sleep disruption, anxiety, depression, and even musculoskeletal complaints.

The core question the researchers set out to answer is deceptively simple: can a person’s risk of smartphone addiction be predicted accurately from measurable patterns of behavior, and can the model explain exactly which behaviors drive that prediction? This second half of the question matters enormously in practice. Black-box predictive models have long been viewed with suspicion in health and social science contexts, because clinicians, educators, and policymakers are reluctant to act on a risk score they cannot interrogate. The study’s answer is that high accuracy and interpretability need not be traded against each other. After preprocessing and feature transformation of the behavioral data, the team evaluated multiple classification models, and logistic regression emerged as the strongest performer, achieving an accuracy of 0.978 and a ROC-AUC of 0.999, figures that indicate near-ceiling discrimination between addicted and non-addicted usage profiles.

The choice of logistic regression as the winning model is itself instructive. In an era when deep neural networks dominate headlines, the study demonstrates that a linear classifier, whose coefficients can be read directly as the direction and magnitude of each feature’s influence, can outperform more complex alternatives when the underlying signal in the data is strong. Logistic regression estimates the probability that a given usage profile belongs to the addicted class by fitting a weighted sum of features through a logistic function. Its transparency means that every prediction can be traced back to specific behavioral inputs, which is precisely the property that regulatory frameworks and clinical ethics increasingly demand of automated decision systems.

Statistical analysis reinforced the machine learning results in striking fashion. The researchers report a p-value of approximately 8.71 times 10 to the power of negative 93 for the effect of daily usage on addiction, an astronomically small number that indicates the relationship between daily usage and addictive outcomes is overwhelmingly significant. In practical terms, a p-value of this magnitude means that the observed association would essentially never arise by chance if no true relationship existed. Daily usage emerged as the dominant behavioral signal, a finding that aligns with a substantial body of prior literature, including concurrent studies linking usage intensity to mobile phone addiction risk and meta-analyses documenting the effects of smartphone addiction on learning outcomes.

What elevates the study beyond a standard classification exercise is its systematic application of explainable artificial intelligence, or XAI. The authors deployed four complementary techniques: SHAP, LIME, Partial Dependence Plots, and Individual Conditional Expectation curves. SHAP, which stands for SHapley Additive exPlanations, borrows a concept from cooperative game theory to distribute the credit for each prediction fairly among the input features, providing a principled account of how much each behavior pushed a given user’s risk score up or down. LIME, or Local Interpretable Model-agnostic Explanations, takes the opposite approach, fitting a simple, interpretable model in the immediate neighborhood of a single prediction so that the reasoning behind that individual classification can be inspected directly.

Partial Dependence Plots and Individual Conditional Expectation curves address the global and local structure of the model’s behavior across the feature space. A Partial Dependence Plot shows how the model’s predicted probability of addiction changes on average as one feature, such as daily screen time, varies while other features are held in check, revealing thresholds and saturation effects that a single coefficient cannot capture. Individual Conditional Expectation curves disaggregate that average picture, tracing the response for individual users so that heterogeneity in the population becomes visible. Together, these four methods give researchers, clinicians, and app designers a layered view of the model: global importance rankings, local case-level explanations, and dose-response curves that show where behavioral risk begins to climb steeply.

The significance of this methodological package extends well beyond the specific dataset. Screening instruments for smartphone addiction, such as the Smartphone Addiction Scale and the Smartphone Overuse Screening Questionnaire developed in earlier research, rely on self-reported questionnaires that are vulnerable to response bias and require willing participation. A behavioral analytics pipeline that infers risk from objective usage features could, in principle, be integrated into digital wellbeing tools, allowing at-risk users to be flagged earlier and more consistently. The authors argue that the combination of high accuracy and interpretability makes their approach appropriate for practical deployment, a claim that rests on the model’s ability to justify its predictions to the humans who would act on them.

The study also situates itself within a rapidly growing research conversation. Earlier work has applied machine learning to problematic smartphone use among children and adolescents in South Korea with explainable methods, and integrative models have incorporated personality traits alongside usage data to predict addiction in teenagers. The present study contributes to this literature by demonstrating that a deliberately simple, interpretable classifier can match or exceed the performance one might expect from more elaborate architectures, provided the behavioral features are well constructed. It also underscores a recurring theme in the field: daily usage quantity is not merely correlated with addiction but appears to be its most powerful statistical signature, dwarfing the contribution of other measured behaviors.

Cautionary notes remain. The authors state that no new datasets were generated or analyzed during the study beyond the behavioral data used, and the underlying data source is a publicly available dataset on teen smartphone usage and addiction, which means the findings are bounded by how that dataset was collected and labeled. Self-reported addiction labels, even when paired with objective usage features, carry inherent measurement uncertainty, and generalization across age groups, cultures, and device ecosystems will require further validation. The authors also note that the research involved no studies with human participants, meaning the model operates on pre-existing behavioral records rather than prospective clinical follow-up. These limitations do not diminish the central result, but they frame it: this is a methodological demonstration of what explainable behavioral analytics can achieve, not yet a validated clinical screening instrument.

Nevertheless, the implications are considerable. As smartphone manufacturers expand digital wellbeing dashboards that already log screen time, app launches, and notification counts, the raw material for addiction-risk analytics is being generated on billions of devices every day. The study’s demonstration that a transparent logistic regression model, explained through SHAP, LIME, Partial Dependence Plots, and Individual Conditional Expectation curves, can predict addiction with an accuracy of 0.978 and a ROC-AUC of 0.999 suggests that early-warning systems for problematic use are technically feasible with methods simple enough to audit. The open question, which the authors’ work now sharpens, is not whether such predictions can be made, but how societies will choose to act on them, balancing the promise of early intervention against the privacy and autonomy concerns that always accompany behavioral surveillance at scale.

Subject of Research: Explainable machine learning prediction of smartphone addiction from behavioral usage data

Article Title: Behavioral analytics for smartphone addiction prediction: an explainable and interpretable machine learning approach

Article References: Urkude, V. R., Vairachilai, S., Urkude, S. V., & Bharaneedharan, S. V. B. (2026). Behavioral analytics for smartphone addiction prediction: an explainable and interpretable machine learning approach. SN Social Sciences, 6(9), Article 410. https://doi.org/10.1007/s43545-026-01697-x

Image Credits: AI Generated

DOI: 10.1007/s43545-026-01697-x

Keywords: smartphone addiction, machine learning, explainable AI, SHAP, LIME, logistic regression, behavioral analytics, digital wellbeing, problematic smartphone use, statistical analysis, prediction models, SN Social Sciences