Feedback-Only AI for Writing Instruction: A Constrained-Generative Tool That Preserves Authorship

Heidi Schultz University of North Carolina at Chapel Hill

Abstract

This study evaluates a “feedback-only,” constrained-generative AI tool designed to support revision without generating or rewriting student text. StoryCoach was developed for a business communication elective and grounded in cognitive apprenticeship with principles of feedback literacy. The tool generated structured feedback: one strength, one opportunity, and one reflective question per submission. Analysis of 57 paired drafts showed significant gains in feature-specific rhetorical execution, with vividness as the primary quantitative indicator (Cohen’s d  = 1.39), supported by independent reader judgments and student reflections. Findings demonstrate that constrained-generative AI can function as a pedagogical partner that strengthens rhetorical awareness and preserves authorship integrity.

Journal
Business and Professional Communication Quarterly
Published
2026-02-26
DOI
10.1177/23294906251414835
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