{
  "dataset": "ASSISTments 2009 (via Atomi/ASSISTments2009)",
  "source_hf": "https://huggingface.co/datasets/Atomi/ASSISTments2009",
  "source_original": "https://sites.google.com/site/assistmentsdata/datasets",
  "subject": "Middle school math (Massachusetts, USA)",
  "students": 4148,
  "skills": 139,
  "interactions": 274331,
  "has_demographics": false,
  "has_question_text": false,
  "has_selected_answer": false,
  "note": "This HF version lacks gender/school columns. Original 2009 file has gender (~50% missing). 2012-2013 Challenge version has gender + SES + ELL + IEP.",
  "2012_download": "https://sites.google.com/site/assistmentsdata/datasets (manual download from Google Drive)"
}