assessing student programming - not agency rentacoding
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Assessing student programming - not agency RentACoding
Thomas LancasterUCE Birmingham
Disciplinary Commons June 9 2006
Material sourced from:
‘Eliminating the successor to plagiarism? Identifying the usage of contract cheating sites’
Robert Clarke & Thomas Lancaster
JISC 2nd International Plagiarism Conference, Newcastle, June 19 – 21 2006
A portfolio
http://commons.thomaslancaster.co.uk
Contract cheating processstudent creates bid request
sellers bid to complete work…for a competitive price
student selects a seller -funds placed in escrow
bidder creates original work
student submits original work
Why bother?
• Because students are using RentACoder.
• 12.3% of bid requests on RentACoder represent contract cheating.– (3 week exhaustive check of RentACoder
submissions i.e. 99 out of 803 bid requests).
Extent of use
• 236 contract cheaters identified over a 2 month period.
– 19 (8.1%) made only a single bid request.– 122 (51.7%) made between 2 and 7 bid
requests.
– 6 (2.5%) made 51 or more bid requests.
Redesigning assessment
• Assess students when they can be monitored:– in lab assessments
• Ensure that students understand what they have produced.– vivas– in lab assessment
• Produce unique watermarked assignment specifications for every student.
Only 1 identified this year
http://www.rentacoder.com
Any questions?
Any answers?
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