Interpreting Difference-in-Differences and Time-Series Evidence in ISO 9001 Quality Improvement

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ID: 338888
2026
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Ranked #167 of 175 articles by views in International journal for quality in health care : journal of the International Society for Quality in Health Care

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Abstract
This letter requests clarification of difference-in-differences specification and inference, and of the treatment of dependence in monthly outcomes. It distinguishes incomplete statistical reporting from conditional concerns about analytical validity, while recognising the original authors' acknowledgement of limitations in attributing improvement to certification.
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openalex_W7225337902 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors I Kadek Angga Raditya, Abel Tantowongso
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Journal International journal for quality in health care : journal of the International Society for Quality in Health Care
Year 2026
DOI
10.1093/intqhc/mzag183
URL
https://doi.org/10.1093/intqhc/mzag183
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