Demographically Adjusted Normative Standards for New Indices of Performance on the Paced Auditory Serial Addition Task (PASAT) |
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| Authors: | Raul Gonzalez Igor Grant S. Walden Miller Michael J. Taylor Brian C. Schweinsburg Catherine L. Carey |
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| Affiliation: | 1. HIV Neurobehavioral Research Center , University of California , San Diego, CA, USA;2. San Diego—Joint Doctoral Program in Clinical Psychology , San Diego State University/University of California , San Diego, CA, USA;3. Department of Psychiatry , University of Illinois , Chicago, IL, USA rgonzalez@psych.uic.edu;5. Department of Psychiatry , University of California , San Diego, La Jolla, CA, USA;6. VA San Diego Healthcare System , San Diego, CA, USA;7. Department of Psychiatry , University of California , San Diego, La Jolla, CA, USA;8. Department of Psychiatry , University of California , San Diego, La Jolla, CA, USA;9. Department of Psychiatry , University of California at San Francisco , San Francisco, CA, USA |
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| Abstract: | Logical grammatical structures comprehension is the ability to understand the relations between objects, actions, and qualities in spoken and written sentences. The Logical Grammatical Structures Test (LGST) was especially devised to assess these abilities in children and adolescents. In the present study the LGST was administered to 405 healthy Dutch children and adolescents. The aims of the present study were (i) to evaluate the psychometric properties of the LGST (using an Item Response Theory framework), and (ii) to establish demographically corrected normative data. The results showed that there was a strong curvilinear relationship between age and LGST performance, i.e., the relative improvement in ability level was much more pronounced for younger children (aged below 14 years) than for older children (aged above 14 years). Level of parental education was positively associated with the LGST performance. Normative data that took the relevant demographic variables into account were established, and it was shown that the LGST had sound psychometric properties. |
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| Keywords: | Language development Educational differences Item Response Theory Normative data |
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