AI-Based Writing Assistants in Higher Education: Impacts on Student Critical Thinking and Academic Integrity

Abstract

The integration of AI-based writing assistants—such as ChatGPT, Grammarly, and QuillBot—has rapidly transformed academic writing practices in higher education. These tools offer instant feedback on grammar, coherence, and structure, and can even generate entire essays or research drafts. While many students and educators recognize the benefits of improved writing fluency, efficiency, and personalized support, significant concerns persist regarding the potential erosion of critical thinking skills and threats to academic integrity. Research highlights a dual impact: AI tools can foster self-directed learning and support skill development when thoughtfully integrated, but overreliance may diminish independent reasoning, creativity, and ethical standards. The literature underscores the need for balanced integration strategies that promote responsible use, ethical awareness, and continued development of core academic competencies. This systematic review synthesizes findings from 50 peer-reviewed studies to examine whether AI-based writing assistants negatively impact student critical thinking and academic integrity in higher education. The review reveals a nuanced picture: strong evidence supports improvements in grammar accuracy and surface-level writing skills, while moderate evidence indicates risks to independent critical thinking, particularly among less experienced writers. Academic integrity concerns are significant, with frequent use associated with increased plagiarism risk absent ethical training. Structured integration with AI literacy education and clear institutional guidelines mitigates negative effects. The review concludes with recommendations for balanced implementation that harnesses benefits while safeguarding core academic competencies.