The integration of Artificial Intelligence (AI)–assisted learning tools into educational
environments has transformed students’ learning experiences globally, yet empirical evidence
on their impact within the Nigerian secondary school context remains limited. This study
investigated the effect of AI-assisted learning tools, such as ChatGPT and similar digital
platforms, on academic performance and study habits among secondary school students in
Nigeria. The study adopted a descriptive survey research design. A sample of 250 Senior
Secondary School II (SS2) students was selected using simple random sampling from selected
public secondary schools. Data were collected using a structured questionnaire titled “AI
Assisted Learning and Academic Behaviour Questionnaire (AILABQ)” and students’ academic
records. The instrument was validated by experts in educational technology and measurement,
and a reliability coefficient of 0.82 was obtained using Cronbach’s alpha method. Data were
analyzed using mean, standard deviation, and independent t-test statistics. The findings
revealed that the use of AI-assisted learning tools significantly improved students’ academic
performance and positively influenced their study habits, including personalized learning, time
management, and access to instant feedback. However, concerns regarding over-dependence
and reduced critical thinking skills were also observed. Based on the findings, it was
recommended that educators should integrate AI tools into teaching practices with proper
guidelines, while policymakers should develop frameworks to regulate their use in schools. The
study contributes to the growing body of literature on digital learning innovations and provides
practical implications for enhancing secondary education in Nigeria.