A Hogan Personality Inventory (HPI) percentile gives a scale score’s relative standing in a specified norm group. A raw subscale count is an item-scoring tally. It is not a percentile, and dividing it by the maximum possible count does not tell you where the score falls among people. Hogan has used different subscale displays across report generations, so check the report’s version and guide before interpreting the count.
What does the percentile describe, and what does the count describe?
A percentile describes relative standing against a reference group. A raw subscale count records item scoring for a narrower theme. They may appear beside each other, but they have different units: one compares scores across people; the other counts points assigned to questionnaire items.
A percentile is not the percentage of items answered a certain way, the probability of an outcome, or a rating of quality. Its meaning depends on which norm group the report uses. When a report names a norm, preserve that context; without it, “percentile” leaves out the comparison that gives the number meaning.
The National Council on Measurement in Education defines percentile rank as the percentage of scores in a specified distribution below a given score. Hogan’s 2013 HPI subscale guide says primary-scale results are often shown as percentiles relative to the general workforce, while subscales may be shown as raw scores. That guide describes an older 206-item True/False form, so it explains that format rather than every HPI report.
A raw count is not a percentile, and its fraction of possible points—if the report gives a denominator—is not a population ranking either. The count’s interpretation also depends on the subscale label and scoring key. Hogan’s older guide notes that some labels are negatively worded: for a label such as Not Anxious, higher endorsement can indicate less anxiety. Without the matching guide, a count alone may not show how the named tendency is scored.
Read the primary-scale percentile as a comparison within its stated norm group. Read a subscale count only as the report-specific raw score it is labeled to be. The count may point to a narrower theme for discussion, but it does not independently establish how common that theme is or what a person will do.
Sources: Interpreting HPI Subscales; NCME Assessment Glossary
Can I convert the count into a percentile?
Not from the count alone. A percentile rank depends on the score distribution in a defined group. Dividing a raw count by its maximum possible points gives a fraction, not relative standing among people.
Hogan’s 2013 guide describes raw subscale scores. The Subscale Brick FAQ says that, beginning with reports generated from May 2, 2016, bricks replaced raw subscale scores in the HPI reports it lists. Hogan aligned raw scores to four categories using cumulative frequencies from global working-population data collected for applicant screening, employee development, or research; it says representation was balanced across languages. The FAQ does not provide the normative sample size or detailed sampling method. Since the categories follow cumulative frequencies, raw counts do not map to them in equal arithmetic steps.
The FAQ’s date and listed report scope matter: they explain a documented format change, not the format of every report a reader may encounter. The FAQ does not give a count-to-category conversion table for every report, and the cited materials do not establish reliability, validity, or measurement uncertainty for an individual subscale interpretation. Its description of global norm data is not enough to judge whether that reference group fits a particular person, report, language, or use.
The 2013 guide and later FAQ document different displays, but they are not a complete current scoring manual. They do not establish every subsequent norm update or explain how every present-day report was scored. Do not apply a mapping across versions, infer a category from a count, or treat the brick display as evidence of precise individual measurement unless the matching documentation supports that use.
Check the report date, language, score label, and named norm or scoring edition. Ask the administrator for its matching guide and any applicable conversion. If no normed subscale result is printed or documented for that report, preserve the value as a raw count rather than assigning it a percentile or brick category.
Sources: Q&A: Subscale Brick Format Scoring Updates; Interpreting HPI Subscales; NCME Assessment Glossary
What can the numbers support in a work conversation?
A subscale theme can help frame a feedback conversation, but the score is not evidence that a particular work event happened or will happen. The cited Hogan documents describe subscales as interpretive detail that supplements the primary scales; they do not establish a specific behavior from an individual count or brick category. Their published descriptions also do not supply individual reliability, validity, or uncertainty estimates for that interpretation.
Treat any work example as information to ask about and verify independently. If a theme raises a question about responding when priorities change, ask what happened in a specific recent situation, then consider the person’s account alongside relevant work records, role demands, and circumstances. Workload, unclear ownership, or late instructions may also matter. None of those facts can be inferred from the score itself.
Keep the conversation tied to a concrete decision, such as whether to clarify handoffs, and agree on what observable information would help with that decision. That keeps the report in the role of a prompt for reflection rather than proof of a stable habit, job fit, or performance outcome.
For a feedback meeting, ask: “Which HPI version and guide produced this subscale result, what norm data and conversion apply, and what independent evidence would help us evaluate the interpretation?” If you are separately exploring your work tendencies, the publication’s Work Pattern Report offers low-stakes reflection; it does not convert or validate an HPI result.
Sources: Q&A: Subscale Brick Format Scoring Updates; Interpreting HPI Subscales
Questions readers ask
Does a raw HPI subscale count mean a percentile?
No. A raw count and a percentile use different scales. A percentile requires comparison with a specified score distribution, which the count alone does not provide.
When did Hogan begin showing HPI subscales as bricks?
Hogan’s Subscale Brick FAQ says the change began on reports generated from May 2, 2016, for the HPI reports it lists. Check the date and title of your own report; the FAQ does not identify every report version or provide an individual conversion.
Sources and notes
- Q&A: Subscale Brick Format Scoring Updates
Hogan's FAQ says the 2016 HPI and MVPI subscale brick format replaced raw subscale scores in listed reports with one of four categories. It says Hogan aligned raw subscale scores to those categories using cumulative frequencies from global working population normative data collected for applicant screening, employee development, or research, with sample representation balanced across languages. It reports that subscales supplement interpretation and that interpretation should remain primarily at the primary-scale level.
- Interpreting HPI Subscales
Hogan's 2013 guide describes a 206-item True/False HPI format, says primary-scale results are often presented as percentiles relative to the general workforce, and discusses raw subscale scores as added interpretive detail. It notes that some negatively worded subscale labels indicate absence of the named characteristic when endorsement is higher. These statements describe the guide's format and interpretation, not every current report.
- NCME Assessment Glossary
NCME defines percentile rank as the percentage of scores in a specified score distribution below a given score, norm-referenced interpretation as comparison with performance in a specified reference population, and raw score as a sum or other combination of item scores.
Apply it to your work
Turn a work question into observable patterns
From this guide: A Hogan subscale count can prompt a question, but it cannot show by itself how your tendencies combine in day-to-day work.
If you are weighing a work decision, the remaining question is how your own ways of deciding, planning, handling feedback, and adapting show up together. The Work Pattern Report is a non-validated, low-stakes self-report across those areas. Use it to name patterns and questions to explore, alongside your experience and the demands of the role; it does not validate or convert a Hogan score or recommend a job.