About the Big Five test: questions and scoring

This test explores five broad dimensions: openness, conscientiousness, extraversion, agreeableness and neuroticism. It describes continuous scales rather than assigning everyone to a fixed personality type. The purpose is to offer words and questions for personal reflection. It does not establish a diagnosis, measure intelligence or certify suitability for a job or relationship.

The source package contains all 120 IPIP items in English and Russian. Choose Quick with 30 items, Standard with 60, or Deep with all 120. The levels are nested: one, two or four items for every facet. The quick level preserves the original selection. The standard level adds one item per facet while minimizing key imbalance. Deep retains every original key, even though the full bank is not balanced between direct and reverse items. Our selection record and Russian wording corrections are in the project documentation. These selections are not validated short forms.

Each statement is answered from 1 to 5. A reverse-keyed item contributes 6 minus the response. For each domain, the engine averages all its scored answers: six in Quick, twelve in Standard and twenty-four in Deep. It subtracts 1, divides by 4, multiplies by 100 and rounds to an integer. Neutral answers produce 50. Every item in the selected level must be answered. Only Deep also shows facet numbers, averaging four answers per facet. Two items in Standard give tentative facet tendencies, so facet numbers are not shown. Scores are not population percentiles.

The reading bands are low at 0–33, middle at 34–66 and high at 67–100. These are editorial thresholds for choosing explanatory text, not clinical cut-offs or norms derived from a reference population. A small change near a boundary can change the label while leaving the underlying answers very similar. Read neighbouring descriptions when they fit your experience.

Self-report depends on how you interpret statements, which situations you recall and the circumstances in which you answer. A few items cannot cover every expression of a broad trait. We have not established reliability, population norms, equivalence between languages or predictive accuracy for these levels. Repeating the questionnaire is not a controlled way to establish personality change.

Scoring happens in your browser. When browser storage is available, only item identifiers and response values are saved in localStorage on this device. They let you deepen a matching result by answering the missing items. Fresh starts ask every item in the selected level. There is no account or server answer database. A shared link stores the level and domain scores, plus facet scores for Deep, in its fragment. Anyone with that link can read them; encoding is not encryption. Optional purchases involve result-related data for payment verification.