Behavior Research Methods

, Volume 42, Issue 1, pp 55–73

CircE: An R implementation of Browne’s circular stochastic process model


DOI: 10.3758/BRM.42.1.55

Cite this article as:
Grassi, M., Luccio, R. & Di Blas, L. Behavior Research Methods (2010) 42: 55. doi:10.3758/BRM.42.1.55


In confirmatory analysis of whether data have a circumplex structure, Browne’s (1992) model has played a major role. However, implementation of this model requires a dedicated program, CIRCUM, because the analysis routine is not integrated in any of the most widely used statistical software packages. Hence, data entry and graphical representation of the results require the use of one or more additional programs. We propose a package for the R statistical environment, termed CircE, that can be used to enter or import data, implement Browne’s confirmatory analysis, and graphically represent the results. Using this new software, we put forward a new approach to assess the sustainability of theoretical models when the analysis is carried out at the level of questionnaire items. The CircE package (for either Mac OS X or Windows) and additional files may be downloaded from

Supplementary material (1.2 mb)
Supplementary material, approximately 340 KB.

Copyright information

© Psychonomic Society, Inc. 2010

Authors and Affiliations

  • Michele Grassi
    • 1
  • Riccardo Luccio
    • 1
  • Lisa Di Blas
    • 1
  1. 1.Department of Psychology “G. Kanizsa,”University of TriesteTriesteItaly

Personalised recommendations