%0 Conference Proceedings %B Proceedings of the Joint Statistical Meetings 2018 %D 2018 %T Challenges from Modeling Open Online Assessment Data %A Yan Liu %A Henrike Besche %A Audrey BĂ©liveau %A Xingyu Zhang %A Edward Kroc %A Melanie Stefan %A Johanna Gutlerner %A Chanmin Kim %B Proceedings of the Joint Statistical Meetings 2018 %G eng