Instrument record and evidence limits
A reproducible record of what QuizAlbum scores, which version it uses, and which claims remain unsupported.
Primary sources: IPIP item and key record · IPIP public-domain statement · Johnson (2014)
Instrument identity
The full questionnaire uses Johnson's 120-item IPIP representation of the five domains and 30 facets. Current instrument version: johnson-2014-ipip-neo-120-2026-10-18. English items and scoring keys come from the public-domain IPIP source.
Scoring contract
Each 1-5 response is keyed in its published direction, reverse-keyed where required, averaged within a scale, then mapped linearly to 0-100. This is a possible-scale position, not a population percentile.
Translation status
Simplified Chinese and Japanese wording are project translations aligned item-for-item with English. Independent native-language review, back translation, cognitive interviews, reliability, validity, norms, and measurement-invariance studies are still pending.
Uncertainty and repeat results
Scores can change with context, interpretation, mood, and ordinary response variation. QuizAlbum has no dataset that supports confidence intervals, reliable-change thresholds, or claims that two results differ significantly.
Version history
2026-10-18: English source, keys, and Simplified Chinese project translation recorded. 2026-10-19: Japanese project translation recorded. Every wording or key change requires a new version and coverage checks.
20-item snapshot contract
The short entry uses item IDs 49, 97, 25, 73, 1, 55, 102, 27, 77, 8, 57, 105, 33, 81, 9, 62, 111, 36, 83, and 12: four items per domain with positive and reverse keys. This selection is project-authored and has no short-form validation evidence.