Skill-builder data 2009-2010

We also have the 2014-2015 skill builder data set here. 

Important Note: A data quality issue has been detected in this data set and an updated version has been provided below.

The data is here:
It was hosted here:

Update: Duplicated data records have been detected in the data sets that located at above links. A corrected version can be fount here:

This file contains data from ASSISTments' Skill-Builder problem sets. 

Skill builder problem sets have the following features:
  • Questions are based on one specific skill, a question can have multiple skill taggings. 
  • Students must answer three questions correct in a row to complete the assignment;
  • If a student uses the tutoring ("Hint" or "Break this Problem Into Steps"), the question will be marked incorrect;
  • Students will know immediately if they answered the question correctly;
  • If a student is unable to figure out the problem on his or her own, the last hint will give the student the answer;
  • Currently, this feature is only available for math problem sets.

If you are using this data set please put into your publication this precise URL (https://sites.google.com/site/assistmentsdata/home/assistment-2009-2010-data/skill-builder-data-2009-2010) so others can know what data set you used.

If you are using it in a publication, please make reference to ASSISTments by citing our most commonly used paper to reference the ASSISTments system.  (To be clear the paper below is from 2009 and does not use this data.)
  • Feng, M., Heffernan, N.T., & Koedinger, K.R. (2009). Addressing the assessment challenge in an Intelligent Tutoring System that tutors as it assesses. The Journal of User Modeling and User-Adapted Interaction, 19, 243-266. See more about this article here.  

We think these papers used this data
  •  Chris Piech, Jonathan Spencer, Jonathan Huang, Surya Ganguli, Mehran Sahami, Leonidas Guibas, & Jascha Sohl-Dickstein. (2015) Deep Knowledge Tracing.  Retrieved from http://arxiv.org/pdf/1506.05908.pdf. I think it is going to NIPS. http://arxiv.org/abs/1506.05908
More info is available from this year school year here

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