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It details methodological choices covering variable use, data cleaning, and reporting decisions. Using the 2020–21 CRDC covering 97,575 schools, the brief describes six cleaning steps, including removing missing or suppressed values, correcting charter misclassifications, and excluding specified LEA regions, resulting in a final sample of 95,366 schools.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/civil-rights-data-collection-detailed-methodology-2024-methodology/583039/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/civil-rights-data-collection-detailed-methodology-2024-methodology/583039.png","ImageObject",300,407,{"name":92,"@type":93},"\tJames","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-15",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of the CRDC detailed methodology in the 2024 briefs?","Question",{"text":112,"@type":113},"It documents methodological decisions needed to produce findings across six briefs, especially variable use, data cleaning, and how results are reported for students with disabilities.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How were charter school misclassifications handled in the cleaning process?",{"text":117,"@type":113},"Schools identified as charter schools in states without charter school legislation or active charter schools in 2020–21 were reclassified as non-charter schools.",{"name":119,"@type":110,"acceptedAnswer":120},"What is the final number of schools included after data cleaning?",{"text":121,"@type":113},"After completing all cleaning steps, 95,366 schools were included in the final sample.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},583039,1792061907,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},2336474466412,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Civil Rights Data Collection Detailed Methodology (2024)  \nOCTOBER 8, 2024  \nMETHODOLOGY  \nThis year’s briefs are the fifth time CLE has analyzed data from the Civil Rights Data Collection (CRDC).  \nCOLLECTED BIANNUALLY SINCE 1968, the CRDC represents the U.S. Department of Education’s most substantial effort to understand data related to students’ educational opportunities throughout K–12 schooling, particularly for historically marginalized student populations. Due to the COVID-19 pandemic, the Department delayed planned data collection in the 2019–20 school year to the 2020–21 school year and released that data in November 2023.  \nCLE’s briefs use CRDC data to understand the overall state of access and opportunity for students with disabilities in both traditional public and in charter schools. This report describes the methodological decisions necessary to produce the findings across the six briefs, particularly decisions made on variable use, data cleaning, and how to report findings.  \nCLE’s briefs use CRDC data to understand the overall state of access and opportunity for students with disabilities in both traditional public and in charter schools.  \nCivil Rights Data Collection Detailed Methodology (2024) | OCTOBER 8, 2024 2  \nData Cleaning  \nThe 2020–21 CRDC collected information from 97,575 schools. Of these schools, 7,653 were identified as charter schools. However, schools may have data missing from the final report (coded with a “-5” or “-6”), or have data suppressed for privacy reasons (coded with a “-11”). These values were cleaned from the data. Additionally, some schools were misclassified as charter schools in the data set. A school’s charter identification was considered incorrect if the school was reported as a charter school in a state without charter school legislation in 2020–21. Seven states (Kentucky, Montana, North Dakota, Nebraska, South Dakota, Vermont, and West Virginia) did not have charter schools or charter school legislation as of the 2020–21 school year.1  \nSix steps were used to clean the data to remove these schools:  \nSTEP  1   \nFirst, we checked for schools where the total enrollment of males and females were missing; CRDC reports student populations separated into “males”and “females” rather than a single total. No schools were removed as the data for these variables was present. The CRDC variable names used in this step were:  \n• TOT   ENR   M  \n• TOT   ENR   F  \nSTEP  2   \nNext, we reclassified two schools where schools were identified as charter schools in states without charter school laws or operational charter schools. Nebraska and West Virginia reported one school each as a charter. These schools were re-categorized as non-charter schools. The CRDC variable names used in this step were:  \n• LEA   STATE  \n• SCH   STATUS   CHARTER  \nSTEP  3   \nNext, we checked for schools with missing values (-5 or-6) on variables related to school sector. No schools were re-categorized. The CRDC variable names used in this step were:  \n• SCH   STATUS   SPED  \n• SCH   STATUS   MAGNET  \n• SCH   STATUS   CHARTER  \n• SCH   STATUS ALT  \nSTEP  4   \nNext, we removed schools where the total enrollment of males and females, the total enrollment under IDEA of males and females, and the total enrollment under Section 504 of males and females were suppressed. 1,368 schools were removed. The CRDC variable names used in this step were:  \n• TOT   ENR   F  \n• TOT   ENR   M  \n• SCH   ENR   IDEA   M  \n• SCH   ENR   IDEA   F  \n• SCH   ENR 504 M  \n• SCH   ENR   504   F  \nSTEP  5   \nNext, we checked for schools that reported having more students with disabilities than the total number of students. No schools were removed at this step. The CRDC variable names used in this step were:  \n• TOT   ENR   F  \n• TOT   ENR   M  \n• SCH   ENR   IDEA   M  \n• SCH   ENR   IDEA   F  \nSTEP  6   \nFinally, removed 841 schools that reported their LEAstate as Puerto Rico. The CRDC variable name used in this step was the following: LEA_STATE","cbCaifzl5qOlKCBu","https://ap.wps.com/l/cbCaifzl5qOlKCBu","pdf",3474413,26,"English","# Data Cleaning\n## Dataset overview\n## Cleaning steps (Step 1-6)\n## Final sample and sector breakdown","[{\"question\":\"What is the purpose of the CRDC detailed methodology in the 2024 briefs?\",\"answer\":\"It documents methodological decisions needed to produce findings across six briefs, especially variable use, data cleaning, and how results are reported for students with disabilities.\"},{\"question\":\"How were charter school misclassifications handled in the cleaning process?\",\"answer\":\"Schools identified as charter schools in states without charter school legislation or active charter schools in 2020–21 were reclassified as non-charter schools.\"},{\"question\":\"What is the final number of schools included after data cleaning?\",\"answer\":\"After completing all cleaning steps, 95,366 schools were included in the final sample.\"}]","Civil Rights Data Collection Detailed Methodology (2024) - Methodology | PDF",1792045456,66]