Candidate authentication and score verification in online testing

Assessment specialist PSL is proud to announce a significant security enhancement in online testing. By implementing sophisticated IRT - item response theory - scoring methodology they are now able to identify candidates who may have had assistance whilst completing online reasoning tests.

Drawing from their extensive data bank of scores - collected from candidates completing online tests - PSL are able to assign marginal probabilities to candidateís responses and indicate whether an applicantís pattern of responses is likely to be unusual.

PSL are able to achieve this by using Bayesian scoring techniques. This technique will allow test administrators to see if applicantsí response patterns are typical of those completing an online test. PSL is at the forefront of research in this area and this latest development is an extension of a study first presented by PSL at the British Psychological Society DOP conference.

ìUsing a range of sophisticated algorithms we can spot unexpected responses and scores,î says Richard Alberg, Chief Executive of PSL. ìWe can then recommend to clients for which candidates supervised retesting would be useful. In this way clients receive all the efficiency and cost benefits of unsupervised online assessment whilst dramatically reducing the risks of cheating. This is an example of PSLís cutting-edge R&D delivering practical benefits to our clients and is just one of the reasons why so many employers are switching to PSL.î

PSL is one of the UKís leading suppliers of online tests and their clients include Cadbury Schweppes, Deloitte, the European Personnel Selection Office, HMV, Lloyds TSB, Siemens Business Services, Superdrug and Toyota.

For more information about PSLís online tests, please call 020-8585 2345 e-mail info@psl.com