US 11,854,433 B2
Systems and methods for item response modelling of digital assessments
Krzysztof Jȩdrzejewski, Poznań (PL); Quinn Lathrop, Denver, CO (US); Kacper Lodzikowski, Poznań (PL); Tomasz Matysiak, Rakoniewice (PL); Mateusz Otmianowski, Poznań (PL); and Malgorzata Schmidt, Poznań (PL)
Assigned to PEARSON EDUCATION, INC., Bloomington, MN (US)
Filed by Pearson Education, Inc., Hoboken, NJ (US)
Filed on Feb. 4, 2019, as Appl. No. 16/267,281.
Prior Publication US 2020/0251007 A1, Aug. 6, 2020
Int. Cl. G06F 16/906 (2019.01); G09B 7/04 (2006.01); G09B 7/077 (2006.01); G06F 17/18 (2006.01); G06F 17/17 (2006.01); G06T 1/20 (2006.01)
CPC G09B 7/04 (2013.01) [G06F 17/17 (2013.01); G06F 17/18 (2013.01); G09B 7/077 (2013.01); G06T 1/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a computer processor; and
a computer memory configured to store computer-readable instructions which, when executed by the computer processor, cause the computer processor to:
retrieve assessment data from a source database, the assessment data corresponding to a plurality of titles, the plurality of titles each including a plurality of digital assessments, and the plurality of digital assessments each including a plurality of assessment items;
initiate at least two general purpose graphics processing unit instances, wherein the at least two general purpose graphics processing unit instances comprise:
a first general purpose graphics processing unit instance configured to estimate first difficulty values, first discrimination values, and first hint change values for all assessment items of a first title of the plurality of titles based on the assessment data and a modified two-parameter item response theory model; and
a second general purpose graphics processing unit instance configured to estimate second difficulty values, second discrimination values, and second hint change values for all assessment items of a second title of the plurality of titles based on the assessment data and the modified two-parameter item response theory model, wherein the first and second general purpose graphics processing unit instances are configured to operate in parallel;
with the at least two general purpose graphics processing unit instances, determine at least one estimated item parameter value of at least one assessment item of the plurality of assessment items based on the assessment data and the modified two-parameter item response theory model;
with the at least two general purpose graphics processing unit instances, perform verification of the at least one estimated item parameter value; and
cause the at least one estimated item parameter value to be stored in a target database.