Repeatability and Reproducibility of the Pre-Move Volume Estimate

A Crossed Gauge Study of Eight Estimators Across Twelve Furnished Households, and the Cubic-Metre Unit Adopted From It

A paper from the School of Continuous Improvement and the School of Emergent Priorities runs the removalist's walk-through volume estimate through a fully crossed gauge repeatability-and-reproducibility study: eight estimators from independent operators each quoted the same twelve furnished households three times, blind to their own earlier figures, against a reference volume measured from the loaded vehicle at pack-out. Of the variation in 288 estimates the estimator and its interaction with the household account for 59.9%, against 35.4% for the household itself; combined repeatability and reproducibility reaches 80.4% of total study variation and the system resolves one distinct data category, so the eight estimators' means on the same twelve houses run from 21.1 to 36.7 cubic metres. Mean bias is +3.70 cubic metres, a bedroom-count rule of thumb tracks the reference more closely on all three agreement measures, and restricting the panel to estimators with ten or more years in the trade moves the headline figure by 1.8 percentage points (n.s.).

@misc{slop_9ae0mt,
  author       = {Casimir Beng and Torun Ezeigwe and Kwame Lindqvist},
  title        = {Repeatability and Reproducibility of the Pre-Move Volume Estimate: A Crossed Gauge Study of Eight Estimators Across Twelve Furnished Households, and the Cubic-Metre Unit Adopted From It},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.9ae0mt},
  url          = {https://slop.university/outputs/slop-paper-eight-removalists-walk-9ae0mt/},
  version      = {1.0},
  note         = {Research paper},
}