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Katherine M. Bowser
Human-, GRM-, and LLM-Generated School-Improvement Leadership Scores from Missouri: Structural Bias and Concurrent and Predictive Validity
Seth B. Hunter, David S. Woo, Katherine M. Bowser, Syeda Sabrina Akter, Thomas Hairston, Eter Mjavanadze, Antonios Anastasopoulos, Sarah Hairston.Topics: MethodsHead or assistant principal evaluation systems are widely deployed but rarely examined for validity, and AI scoring tools have entered K–12 workflows ahead of the evidence. We examine human supervisor ratings, Graded Response Model (GRM) rescaling, and large language model (LLM) scoring of 1,385… more →
The Four Day Gamble: The Quasi-Experimental Effects of Four-Day School Week Adoption on Teacher, Principal, and Paraprofessional Staff Turnover and District Financial Outcomes
Four-day school week (4DSW) adoption is an increasingly popular policy, particularly for rural districts that are seeking to reduce educator turnover and district expenditures. Using a staggered treatment event study design, I am among the first to estimate the quasi-experimental effects of 4DSW… more →
Next-Generation Teacher Evaluation in Rural Missouri: Main and Moderated Effects on Student Achievement and Effects-to-Expenditure Ratios
Topics: Teacher and Leader DevelopmentTags: School reform, Rural educationWe extend teacher evaluation research by estimating a reformed evaluation system's plausibly causal average effects on rural student achievement, identifying the settings where evaluation works, and incorporating evaluation expenditures. That the literature omits these contributions is… more →