@article{8700428,
  abstract     = {{Purpose: The main concept analysis (MCA; Kong, 2009) quantifies the effectiveness and efficiency of information transfer during verbal discourse by means of four sets of sequential pictorial stimuli. This test was originally developed for a Cantonese-speaking population. The main goals of this study were (a) to translate and adapt the MCA to Dutch; (b) to establish normative data for healthy native Dutch-speaking adults; (c) to assess the effect of age, education level, and gender on MCA outcome; and (d) to establish inter- and intrarater reliability of the Dutch MCA.

Method: Language samples were collected from 60 healthy native Dutch speakers, equally recruited in different age (20-39 years, 40-59 years, 60-79 years) and education (middle and highly educated) categories through administration of the MCA. Utterances produced by at least 75% of the participants were included as a main concept in the Dutch MCA. Subsequently, age-specific normative data were established for each of the MCA parameters. Finally, an ICC was calculated in order to verify inter- and intrarater reliability of the Dutch MCA.

Results: The translated MCA consisted of 19 main concepts. Age-specific normative data were obtained. Both age and education level had a significant effect on MCA outcome. Information transfer in elderly was both less effectively and efficiently compared to young- and middle-aged adults. In addition, highly educated participants transferred information less efficiently compared to middle educated participants. Based on inter- and intrarater reliability measures, the Dutch MCA proved to be a reliable measuring instrument.

Conclusions: The MCA was translated to Dutch, and age-specific normative data were established for a healthy, Dutch-speaking population. The Dutch MCA is a reliable tool for eliciting and quantifying discourse production. Validation of the test for people with aphasia is necessary in order for the test to be useful in a clinical practice.}},
  author       = {{Criel, Yana and Deleu, Marie and De Groote, Evelien and Bockstael, Annelies and Kong, Anthony Pak-Hin and De Letter, Miet}},
  issn         = {{1058-0360}},
  journal      = {{AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY}},
  keywords     = {{DISCOURSE,RELIABILITY,VALIDATION,APHASIA,SPEECH,ADULTS}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{1750--1766}},
  title        = {{The Dutch main concept analysis : translation and establishment of normative data}},
  url          = {{http://doi.org/10.1044/2021_AJSLP-20-00285}},
  volume       = {{30}},
  year         = {{2021}},
}

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