Seminar in Psychometrics

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How to evaluate different equating methods

Date and time: April 20, 2021
Place ICS CAS room 318, Pod Vodárenskou věží 2, Prague 8, also on Zoom.

Abstract. Test score equating is used to make scores from one scale comparable with the scores from another scale. There are a large number of equating methods available depending on how data is collected and what assumptions are made. The talk starts with a brief overview of available equating methods. As there are a large number of equating methods developed for different situations and different tests we need tools to evaluate and compare the different equating transformations. There are a large number of methods and measures proposed to evaluate an equating transformation. In general they can be divided into two groups; equating specific measures and statistical measures. In this talk I will discuss several methods and illustrate them with some examples in R.

Marie Wiberg
University of Umea