{"id":"W1757772857","doi":"10.19173/irrodl.v16i3.2112","title":"Massive open online course completion rates revisited: Assessment, length and attrition","year":2015,"lang":"en","type":"article","venue":"The International Review of Research in Open and Distributed Learning","topic":"Online Learning and Analytics","field":"Computer Science","cited_by":488,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Bill and Melinda Gates Foundation","keywords":"Attrition; Grading (engineering); Distance education; Massive open online course; Regression analysis; Medicine; Statistics; Medical education; Demography; Psychology; Mathematics education; Mathematics; Dentistry","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1968531770203327,"score_gpt":0.5243967242174246,"score_spread":0.3275435471970919,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}