Create tests
Author questions, import questionnaires, select appropriate IPIP items, define response scales, and build clearly named constructs.
Designed for researchers
Six ways to advance research
A free platform for universities, psychologists, independent researchers, educators, and developers to create, administer, score, compare, and share assessments—with a usable web interface as well as an API.
Tune scoring
Experiment with item weights, reverse-keyed answers, missing-data rules, subscales, thresholds, and alternative algorithms.
Run studies
Compare scoring methods, test hypotheses, estimate measurement quality, and examine item behavior using authorized research data.
Invite participants
Share an assessment link, use an accessible questionnaire, embed a study, or integrate sessions with the API.
Analyze findings
Calculate appropriate statistics, compare populations responsibly, and export data that researchers are authorized to access.
Publish & collaborate
Share instruments with author credit, publish scoring configurations, and enable independent replication and peer review.