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In 2012, the Danish government decided to support the fight against dyslexia. The government issued a public tender for the development of \u201ca standardized, electronically administered test of dyslexia for use [\u2026] from primary Grade 3 and up through all educational levels to 5-year university education.\u201d The present paper reports from the development of this National Dyslexia Test. The paper focuses on the definition of dyslexia and the composition, reliability, and validity of the test. Data from the development of the test demonstrate the psychometric properties of the test. Reliability was indicated by a high agreement between the two (computer-administered) measures that are part of the test. External convergent validity was indicated by a high agreement between test results and results from prior practice and by agreement between test results and reading comprehension of educational texts. The paper concludes with a discussion of the practical uses and potential issues with the test since its release in 2015.<\/jats:p>","DOI":"10.1007\/s11881-023-00285-5","type":"journal-article","created":{"date-parts":[[2023,7,7]],"date-time":"2023-07-07T05:02:06Z","timestamp":1688706126000},"page":"337-355","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["A national test of dyslexia"],"prefix":"10.1007","volume":"73","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6573-6332","authenticated-orcid":false,"given":"Mads","family":"Poulsen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"},{"role":"corresponding-author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9056-5379","authenticated-orcid":false,"given":"Holger","family":"Juul","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8696-2486","authenticated-orcid":false,"given":"Carsten","family":"Elbro","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2023,7,7]]},"reference":[{"issue":"12","key":"285_CR1","doi-asserted-by":"publisher","first-page":"3507","DOI":"10.1044\/2017_JSLHR-L-16-0473","volume":"60","author":"SM Adlof","year":"2017","unstructured":"Adlof, S. M., Scoggins, J., Brazendale, A., Babb, S., & Petscher, Y. (2017). Identifying children at risk for language impairment or dyslexia with group-administered measures. Journal of Speech, Language, and Hearing Research, 60(12), 3507\u20133522. https:\/\/doi.org\/10.1044\/2017_JSLHR-L-16-0473","journal-title":"Journal of Speech, Language, and Hearing Research"},{"issue":"2","key":"285_CR2","doi-asserted-by":"publisher","first-page":"115","DOI":"10.1002\/dys.313","volume":"12","author":"AB Andreassen","year":"2006","unstructured":"Andreassen, A. B., Knivsberg, A. M., & Niemi, P. (2006). Resistant readers 8 months later: energizing the student\u2019s learning milieu by targeted counselling. 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(1975). The cloze procedure: literacy in the classroom. In W. D. Page (Ed.), Help for the reading teacher: New directions in research. Urbana, Ill: National Conference of Research in English, pp. 60\u201390."},{"key":"285_CR6","doi-asserted-by":"publisher","DOI":"10.1177\/00222194211037062","author":"H Catts","year":"2021","unstructured":"Catts, H., & Petscher, Y. (2021). A cumulative risk and resilience model of dyslexia. Journal of Learning Disabilities. https:\/\/doi.org\/10.1177\/00222194211037062","journal-title":"Journal of Learning Disabilities"},{"issue":"2","key":"285_CR7","doi-asserted-by":"publisher","first-page":"327","DOI":"10.1037\/a0018448","volume":"102","author":"DL Compton","year":"2010","unstructured":"Compton, D. L., Fuchs, D., Fuchs, L. S., Bouton, B., Gilbert, J. K., Barquero, L. A., Cho, E., & Crouch, R. C. (2010). 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