Measurement science: building valid indicators
This territory starts from the construct and its use before the questionnaire. Reliability, convergent validity, discriminant validity and invariance answer different questions.
Direct answer
Document whether a scale consistently measures the intended construct in the target population.
This territory starts from the construct and its use before the questionnaire. Reliability, convergent validity, discriminant validity and invariance answer different questions.
Question → design → estimand → uncertainty → decision boundaryESTIMAND
Estimation profile
- Unit of analysis
- Decision × population × horizonControlled scientific terminology
decision × population × horizon - Exact estimand
A defensible chain from question to evidence- Model or deliverable
Question → design → estimand → uncertainty → decision boundary
01—06
Territory pathway
01—08
Verifiable analysis framework
- 01Question
Measurement science: building valid indicators
- 02Estimand
A defensible chain from question to evidence · decision × population × horizon
- 03Data
population · unit_of_analysis · decision_horizon · outcome · assumptions
- 04Model or deliverable
Question → design → estimand → uncertainty → decision boundary
- 05Declared calculation
Question → design → estimand → uncertainty → decision boundary → A defensible chain from question to evidence
- 06Uncertainty checks
Unique decision intent · Explicit identification assumptions · Reproducible evidence trail
- 07Method-specific validation
Check data, estimate stability and interpretation limits. Unique decision intent · Explicit identification assumptions · Reproducible evidence trail
- 08Limitations
Infer score validity from Cronbach's alpha alone.
Required variables
populationunit_of_analysisdecision_horizonoutcomeassumptions
Checks · Controlled scientific terminology
- Unique decision intent
- Explicit identification assumptions
- Reproducible evidence trail
Document whether a scale consistently measures the intended construct in the target population.
Infer score validity from Cronbach's alpha alone.
Scientific sources
