EPEC at the IACAT Conference 2015
EPEC's Founder and Exec Director, Professor John Barnard delivered his presidential address at the IACAT Conference on 14 September 2015 in Cambridge, England. Entitled, 'Improving Precision of CAT Measures', Prof Barnard questioned dichotomous scoring (scoring only as either correct or incorrect). He suggested that a test taker may not always have 100% confidence in an answer when they have selected the correct option, and likewise, may have some knowledge of the concept bei
Option Probability Theory: A quest for better measures
Have you ever wondered how to determine if a candidate in an exam 'guessed' their way to a good score? Now there is a way to know! Prof John Barnard, founder and exec director at EPEC has developed a new measurement paradigm, Option Probability Theory (OPT), which can highlight the confidence a candidate had in each of their answers in an exam paper. An article on OPT has been published in the American Review of Mathematics and Statistics and there is another article due t
