Everyday Feelings & Life Context Survey
Sample Question: How would you describe your overall mood today?
A Fived-item Big-Five Personality Assessment
Sample Question: In social situations, how do you enjoy being the center of attention?
Latest News
Highlighted Research
Parallel Research, One Dataset: How PDT Handles Multi-Tenant Studies
Run simultaneous studies with collaborators and roll every response into a clean, unified dataset—without spreadsheets or copy-paste.
Blog Posts
From Survey to Publication: Build a Repeatable Data Pipeline with PDT
A practical pipeline—from instrument design to preregistration, collection, QC, and transparent reporting—using PDT as the backbone.
Designing Branching Logic Without Tears: Skip/Jumps That Scale
Complex doesn’t have to be confusing. Tips for building robust skip logic that stays readable and maintainable.
GDPR/IRB in Practice: A Field Checklist for Online Studies
A pragmatic, non-legal checklist to align your online data collection with GDPR principles and IRB expectations.
Reporting That Writes Itself: Live Dashboards from Raw Responses
Turn incoming responses into automatically updated charts and tables. Share links safely or export for deep dives.
Measure the Big Five in 5 Minutes: A Practical Template
Use PDT’s multi-dimension pattern to capture reliable Big Five traits with scoring, reverse-keys, and norms.