Application of a Rasch analysis to the examination of the perception of facial affect among persons with mental retardation.

@article{Gumpel1996ApplicationOA,
  title={Application of a Rasch analysis to the examination of the perception of facial affect among persons with mental retardation.},
  author={Thomas P Gumpel and Matthew L. Wilson},
  journal={Research in developmental disabilities},
  year={1996},
  volume={17 2},
  pages={161-71}
}
An instrument for the assessment of perception of nonverbal facial affect was developed and administered to two separate groups of respondents: adults with mental retardation and adults without mental retardation. The instrument was developed and calibrated using an item response theory (Rasch) analysis on respondents without mental retardation. Following assurance of item stability, data were analyzed using an anchored analysis for persons without mental retardation. Cumulative score… CONTINUE READING

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