The Transformative Role of Artificial Intelligence in Education: A Comprehensive Analysis of Teaching, Learning, Assessment and Ethical Implications

The rapid proliferation of artificial intelligence (AI), particularly generative AI, is transforming teaching, learning, and assessment in education. This study adopts a sequential explanatory mixed-methods design to empirically examine these impacts. Quantitative data were collected through structured surveys from 500 educators and 1000 students across diverse institutions using a stratified sampling approach, followed by qualitative data from semi-structured interviews and case studies in three institutions. Key variables included time saved by educators, student performance, engagement levels, and access to AI tools, measured using Likert-scale responses and comparative performance indicators. The results show that educators saved an average of 5 hours per week, primarily through automated grading and administrative tasks. Students using AI tools demonstrated an average 20% improvement in test scores, alongside increased engagement. AI-based assessment systems achieved accuracy rates of up to 90%, supporting scalable and consistent evaluation. However, findings also reveal significant challenges, including data privacy concerns, algorithmic bias, and unequal access, with only 30% of low-income institutions reporting access to advanced AI tools compared to 70% of high-income institutions. Overall, the study demonstrates that while AI enhances efficiency, personalization, and scalability in education, its benefits depend on equitable access, ethical safeguards, and institutional readiness. These findings provide evidence-based guidance for the responsible integration of AI in educational systems.