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This study aims to assess prevalence rates for isolated as well as comorbid DD in a sample of Italian-speaking children. In addition, we studied the neuropsychological profile of children with isolated or combined dyscalculia. We tested 380 children (176 males and 204 females) between the ages of 8.17 and 9.33 years using an extensive battery to determine the neuropsychological profile. The assessment included an arithmetic battery and nonverbal intelligence, short-term memory, reading, and writing tests. The results indicated that children with DD more frequently have a reading disorder and writing disorder. They also have a lower nonverbal intelligence quotient (IQ) and obtain significantly lower scores in short-term memory tests and on a visuospatial skills questionnaire. They also had significantly higher scores (indicative of greater attentional difficulties) on the Conners subscale for attentional problems. Children with DD present different cognitive and neuropsychological profiles.<\/jats:p>","DOI":"10.1177\/00222194221102925","type":"journal-article","created":{"date-parts":[[2022,6,21]],"date-time":"2022-06-21T06:10:52Z","timestamp":1655791852000},"page":"310-323","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":25,"title":["A Neuropsychological Profile of Developmental Dyscalculia: The Role of Comorbidity"],"prefix":"10.1177","volume":"56","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8827-269X","authenticated-orcid":false,"given":"Chiara","family":"Luoni","sequence":"first","affiliation":[{"name":"Del Ponte Hospital, Varese, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maristella","family":"Scorza","sequence":"additional","affiliation":[{"name":"University of Modena and Reggio Emilia, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Silvia","family":"Stefanelli","sequence":"additional","affiliation":[{"name":"University of the Republic of San Marino, Republic of San Marino"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9791-9192","authenticated-orcid":false,"given":"Barbara","family":"Fagiolini","sequence":"additional","affiliation":[{"name":"University of Insubria, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristiano","family":"Termine","sequence":"additional","affiliation":[{"name":"University of Insubria, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2022,6,21]]},"reference":[{"key":"bibr1-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1177\/1747021819871243"},{"key":"bibr2-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1016\/j.lindif.2010.09.013"},{"key":"bibr3-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1176\/appi.books.9780890425596"},{"key":"bibr4-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1348\/000709907X209854"},{"key":"bibr5-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1016\/j.jecp.2006.10.001"},{"key":"bibr6-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuropsychologia.2013.06.031"},{"key":"bibr7-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-psych-120710-100422"},{"key":"bibr8-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1007\/s11881-999-0019-8"},{"key":"bibr9-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1367\/A04-209R.1"},{"key":"bibr10-00222194221102925","volume-title":"Taratura italiana del test Matrici di Raven Forma Colore (CPM-47)","author":"Belacchi C.","year":"2008"},{"key":"bibr11-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1080\/08856257.2020.1842975"},{"key":"bibr12-00222194221102925","doi-asserted-by":"publisher","DOI":"10.1016\/j.jecp.2007.12.002"},{"key":"bibr13-00222194221102925","volume-title":"Batteria per la discalculia evolutiva, BDE","author":"Biancardi A.","year":"2004"},{"key":"bibr14-00222194221102925","volume-title":"BVN 5-11: batteria di valutazione neuropsicologica per l'et\u00e0 evolutiva","author":"Bisiacchi P. 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