How the length and characteristics of routing module affect ability estimation in ca-MST?

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Öztürk N.

Universal Journal of Educational Research, vol.7, no.1, pp.164-170, 2019 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 7 Issue: 1
  • Publication Date: 2019
  • Doi Number: 10.13189/ujer.2019.070121
  • Journal Name: Universal Journal of Educational Research
  • Journal Indexes: Scopus
  • Page Numbers: pp.164-170
  • Keywords: Computerized multistage testing, Item characteristics, Measurement precision, Routing module, Routing module length
  • Hacettepe University Affiliated: Yes


© 2019 by authors, all rights reserved.In this study, how the length and characteristics of routing module in different panel designs affect measurement precision is examined. In the scope of the study, six different routing module length, nine different routing module characteristics, and two different panel design are handled. At the end of the study, the effects of conditions on measurement precision are examined by estimating correlation, RMSE and SEE for final theta estimation values. According to the results, it is seen that as the routing module length increases, lower RMSE and higher correlation are obtained. Nevertheless; good results were obtained in both panel designs even if the a and c distributions were outside the range suggested in the literature where routing module length is 15 and above. In addition, the three-stage panel design generally yielded better results in terms of measurement accuracy.