Passed on the Day

A Multi-State Analysis of Backyard Pool-Barrier Condition Between Certifications, Against a Register That Reports Certificates Current

A paper from the School of Continuous Improvement re-inspects 312 certified backyard pool barriers unannounced, 1,058 times over 76 weeks, and fits a reversible three-state Markov model to the panel. At a randomly chosen moment 61.4% of certified barriers met every criterion, against a council register figure of 98.1%, and the fitted mean sojourn time in the fully compliant state is 14.6 weeks against a certificate valid for 156.

@misc{slop_5e3jfu,
  author       = {Thandiwe Solberg and Torun Ezeigwe and Solveig Adeyemi},
  title        = {Passed on the Day: A Multi-State Analysis of Backyard Pool-Barrier Condition Between Certifications, Against a Register That Reports Certificates Current},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.5e3jfu},
  url          = {https://slop.university/outputs/slop-paper-backyard-pool-barrier-5e3jfu/},
  version      = {1.0},
  note         = {Research paper},
}