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1. cifs-head-start-sem-reproducibility cifs-head-start-sem-reproducibility Public

   Reproducible analytic materials for a published study: matched observational data, SEM, and measurement invariance testing to examine preschool academic and social outcomes; data auditing and clean…

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2. fuzzy-matching-psychometrics_math fuzzy-matching-psychometrics_math Public

   End-to-end R pipeline for DAACS math assessment data engineering and fairness testing: multi-wave data standardization, fuzzy item harmonization via string-distance matching, and multivariable logi…

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3. llm-assisted-psychometrics_reading llm-assisted-psychometrics_reading Public

   An end-to-end R pipeline for the DAACS reading assessment. Features reproducible data standardization, LLM-assisted item harmonization, and advanced IRT modeling (Rasch, 2PL, Bifactor) to evaluate …

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4. powered-dif-analysis_traditional-students powered-dif-analysis_traditional-students Public

   An ongoing applied psychometric study investigating Differential Item Functioning (DIF) and measurement invariance in DAACS assessments for traditional college-age students (17-18). This research h…

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5. cat-mst-qa-pipeline cat-mst-qa-pipeline Public

   Config-driven QA workflow for CAT/MST item-response datasets in R. Produces item counts/ranges and response-count plots to support calibration, equating, and drift analyses.

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6. srl-internal-consistency-workflow srl-internal-consistency-workflow Public

   Reproducible R workflow for evaluating internal-consistency reliability (alpha, beta, omega-total, omega-hierarchical) and ordinal CFA diagnostics for the 66-item DAACS Self-Regulated Learning surv…

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