LOCAL-ONLY RESEARCH WORKSPACE

Turn practice
into evidence.

Combine DAT TRAIN pilot exports without uploading them. Validate every row, remove overlapping duplicates, and inspect item behavior before any difficulty or publication decision.

STEP 01 · IMPORT

Choose one or more student exports.

Processing stays inside this browser tab. Identical rows from overlapping history exports are counted once; conflicting copies are excluded and reported.

READY FOR VERSION-2 EXPORTS

No data leaves the device.

Ask participants to download their item-level CSV from My progress, collect those files under the approved pilot protocol, then select them together here.

  1. Validate schema and answer identities
  2. Deduplicate repeated exports
  3. Inspect items with their sample sizes
  4. Download a review-ready summary