Table 36 Sept 2026From “What is measurement error? The gap between a construct and its indicator”

What is measurement error not?

Table 3What is measurement error not?

Object	Core question	Why it is different
Measurement error	Does the indicator represent the declared target under a stated model?	The target-to-observation relationship is the object
Missing data	Is the observation unavailable, censored, or not collected?	Absence of a record is not automatically a value of zero or a noisy value
Selection bias	Which units entered the observed comparison?	The population boundary can change even when each recorded value is accurate
Confounding	Which common causes affect treatment and outcome?	A causal contrast can fail even with a well-measured variable
Common-method bias	Could the method create covariance among variables?	The shared measurement context is the object, not one indicator's target gap
Measurement invariance	Does the instrument operate comparably across groups or time?	The comparison across groups is the object
Model residual error	What remains unexplained after a model is specified?	A residual is not automatically the measurement error in an input or outcome
Data provenance	Can the recorded value be traced through its source and transformations?	Provenance describes the path; it does not by itself establish construct validity

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What is measurement error? The gap between a construct and its indicator

Measurement error begins when an observed indicator is treated as the construct itself. Define the target, indicator, error mechanism, and validation path.

6 Sept 2026

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Isoglu, S. (2026). What is measurement error not? [Table]. isoglu.com. https://isoglu.com/insights/exhibits/isoglu-2026-what-is-measurement-error-fig04/

BibTeX

@misc{isoglu-2026-what-is-measurement-error-fig04,
  author = {Isoglu, Sinan},
  title = {{What is measurement error not?}},
  year = {2026},
  howpublished = {Table 3, isoglu.com},
  url = {https://isoglu.com/insights/exhibits/isoglu-2026-what-is-measurement-error-fig04/},
  note = {From the essay {What is measurement error? The gap between a construct and its indicator}}
}

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