Effectiveness of interventions for school children with developmental dyscalculia: A systematic review and meta-analysis

Effectiveness of interventions for school children with developmental dyscalculia: A systematic review and meta-analysis | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Systematic Review Effectiveness of interventions for school children with developmental dyscalculia: A systematic review and meta-analysis Anemut Mehari, Seleshi Zeleke This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7612021/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract This review aimed to evaluate the effectiveness of interventions for children with developmental dyscalculia (DD). The PsycINFO, ERIC, PubMed, Scopus, Science direct, Google scholar, and Google databasesand search engines were searched. Studies employed experimental and quasi-experimental designs were reviewed. Thirty three studies with 1792 children aged 6–12 years were chosen. A large pooled effect size was found (Hedge's g = .93; 95% CI [.38, 3.09]). There was no statistically significant moderator variable predicting the pooled effect size. Finally, publication bias was found, as shown by Egger's regression test analysis. Overall, interventions have generally large effect in improving the numerical skills of children with DD. Developmental dyscalculia Intervention effectiveness children systematic review meta-analysis Full Text Additional Declarations The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7612021","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Systematic Review","associatedPublications":[],"authors":[{"id":514792885,"identity":"7715f6b0-9b96-4dc3-9697-dabaa03a3147","order_by":0,"name":"Anemut Mehari","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIiWNgGAWjYFACHiA2ADGYDwAJCRlStLAlgLTwEKkFwjBA4eIEuu29Bz9XFNyxNzh+5vOrGzUWPAzsh49uwKfF7My5ZMkzBs8SN5zJ3WadcwzoMJ60tBt4tdzIMZBsMDicYHCDd5txDhtQiwSPGX4t998Y/wRqsTe4wfPMOOcfMVpu8JiBbGHccIOH+XFuGzFazuSYWTYA/TLzTJoZc26fBA8bQb8cP2N8s+HPHXu+44cff875VifHz374GF4tUHCAQeEAA5sEiMlGhHKIFvkGBuYPRKoeBaNgFIyCEQYA3nJMBkpqmbQAAAAASUVORK5CYII=","orcid":"https://orcid.org/0000-0001-8573-2144","institution":"Addis Ababa University","correspondingAuthor":true,"prefix":"","firstName":"Anemut","middleName":"","lastName":"Mehari","suffix":""},{"id":514792886,"identity":"19a92c67-5273-4543-b243-baa674f0a58f","order_by":1,"name":"Seleshi Zeleke","email":"","orcid":"https://orcid.org/0000-0002-9349-6150","institution":"Addis Ababa University","correspondingAuthor":false,"prefix":"","firstName":"Seleshi","middleName":"","lastName":"Zeleke","suffix":""}],"badges":[],"createdAt":"2025-09-14 10:34:56","currentVersionCode":1,"declarations":{"humanSubjects":false,"vertebrateSubjects":true,"conflictsOfInterestStatement":false,"humanSubjectEthicalGuidelines":false,"humanSubjectConsent":false,"humanSubjectClinicalTrial":false,"humanSubjectCaseReport":false,"vertebrateSubjectEthicalGuidelines":true},"doi":"10.21203/rs.3.rs-7612021/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7612021/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":93981437,"identity":"d9dbdbab-0af7-446f-8fa2-2e24b9770c54","added_by":"auto","created_at":"2025-10-21 02:55:29","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":490838,"visible":true,"origin":"","legend":"","description":"","filename":"EffectivenessofinterventionsforschoolchildrenwithdevelopmentaldyscalculiaAsystematicrevie.pdf1.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7612021/v1_covered_3af22415-36ac-4232-a6b0-21b032147f65.pdf"}],"financialInterests":"The authors declare no competing interests.","formattedTitle":"\u003cp\u003e\u003cstrong\u003eEffectiveness of interventions for school children with developmental dyscalculia: A systematic review and meta-analysis\u003c/strong\u003e\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"Addis Ababa University","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Developmental dyscalculia, Intervention effectiveness, children, systematic review, meta-analysis ","lastPublishedDoi":"10.21203/rs.3.rs-7612021/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7612021/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThis review aimed to evaluate the effectiveness of interventions for children with developmental dyscalculia (DD). 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