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Author

J. Leddo

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Review Open access 2026

Improving SAT Test Performance by Having Students Engage in SelfDirected Learning Using Self-assessment and Remediation With METYFoundation.org-Generated Templates

Millions of students take the SAT and other high-stakes tests that influence what colleges or other programs they get into or graduate from. Test preparation has become a multibillion dollar global business, but evidence suggests that SAT programs lead to minimal improvement on average. Our previous research shows that...

Harini Chandhu, J. Leddo, Sreenidhi Hari et al. · 0 citations
Open access 2026

Artificial Intelligence and the Accuracy of Disease Diagnosis

Artificial intelligence (AI) and large language models (LLMs) have demonstrated strong diagnostic performance in narrowly defined medical tasks, but less is known about their accuracy when diagnosis is open ended and spans diverse disease categories. The present study evaluated GPT-4o as a general diagnostic system usi...

J. Leddo · 0 citations
Open access 2026

The relative effectiveness of a self-assessment chatbot and Chat GPT for teaching neurological diseases

Personal assistants, chatbots, and large language models (LLMs) increasingly pervade our society. Many people turn to chatbots and LLMs for medical advice and to answer medical questions. While chatbots and LLMs will inform users of their potential to make mistakes, since following bad medical advice can be harmful, th...

Ashna Melanathuru, J. Leddo · 0 citations
Open access 2026

The Impact of Game-Based Learning and AI Support on Students’ Understanding of Fractions

Fractions are a foundational mathematical concept that many elementary students struggle to understand (Piaget, 1952). Traditional instruction often relies on memorization and repetition, which reduces engagement and limits conceptual understanding. The platform introduces an interactive learning platform that utilizes...

Kriti Regandla, Anika Dubey, D. Rai et al. · 0 citations
Open access 2026

Adaptive Chatbot Significantly Surpasses ChatGPT at Teaching and Assessing User Knowledge about Mental Health and Problematic Social Media Usage

In this experiment, a self-assessment chatbot was created to attempt to solve the issue that chatbots do not adjust their responses to the user and their background, and that user comprehension is not assessed and responses therefore do not adjust to that comprehension.

Zarah Koroth, Anvi Allada, J. Leddo · 0 citations
Review Open access 2026

A Comparison of the Relative Effectiveness of Student SelfAssessment/Remediation vs. Using a Self-Assessment Chatbot on Raising Student Performance

Combining learner-generated knowledge models with LLM-based conversational tutoring produces substantially greater learning gains than self-directed remediation alone, suggesting that combining learner-generated knowledge models with LLM-based conversational tutoring produces substantially greater learning gains.

Sanjay Rapolu, J. Leddo · 1 citation

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