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The report outlines the Growth Model Study Group process, priorities, and the specific models analyzed, including the current DE modified gain scores model, an updated version, and percentile-based approaches (SGP and AGP). It presents evaluation metrics, descriptive statistics, correlation analyses across models 1–4, and additional findings including model-2 supplemental analyses and appendix results.",{"@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/delaware-department-of-education-growth-model-investigation-a-report-of-the-growth-model-study-group-december-4-2024/586107/",{"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/delaware-department-of-education-growth-model-investigation-a-report-of-the-growth-model-study-group-december-4-2024/586107.png","ImageObject",300,407,{"name":92,"@type":93},"Taylor Morgan","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-12","2026-10-15",true,{"@type":102,"interactionType":103,"userInteractionCount":29},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the purpose of the Growth Model Study Group report for Delaware?","Question",{"text":112,"@type":113},"The report evaluates student growth measurement models intended for Delaware’s accountability system, detailing priorities, model options, and evidence from analysis results and evaluation metrics.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which growth models are compared in the analysis results?",{"text":117,"@type":113},"The report analyzes four models: the current DE modified gain scores model (Model 1), an updated DE modified gain scores model (Model 2), the student growth percentiles (SGP) model (Model 3), and the adequate growth percentiles (AGP) model (Model 4).",{"name":119,"@type":110,"acceptedAnswer":120},"How does the report assess model performance and relationships to achievement?",{"text":121,"@type":113},"It provides evaluation metrics plus descriptive statistics and correlation analyses across models, including correlations among school-level proficiency and growth indices and relationships between growth metrics and prior achievement in multiple tables and appendices.","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},586107,1792999613,{"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":29,"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},1099523885336,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","DELAWARE DEPARTMENT OF EDUCATION GROWTH MODEL INVESTIGATION: A Report of the Growth Model Study Group  \nDecember 4, 2024  \nWill Lorié, Scott Marion, Damian Betebenner  \nNational Center for the Improvement of Educational Assessment  \nNational Center for the Improvement of Educational Assessment  \nDover, New Hampshire  \nDELAWARE DEPARTMENT OF EDUCAT ION GROWTH MODEL INVESTIGATION: A Report of the Growth Model Study Group  \nTABLE OF CONTENTS  \nEXECUTIVE SUMMARY ............................................................ 7  \nBACKGROUND ........................................................................ 8  \nSTUDY GROUP PROCESS ........................................................ 9  \nGROWTH STUDY GROUP PRIORITIES FORA GROWTH MODEL FOR DELAWARE’S ACCOUNTABILITY SYSTEM................................................... 10  \nMODELS TO STUDY ............................................................... 11  \nEVALUATION METRICS ......................................................... 13  \nDESCRIPTIVES AND ADDITIONAL ANALYSES FOR MODEL 2 ..................................................... 14  \nANALYSIS RESULTS ............................................................... 15  \n• Model 1. DE modified gain scores model (the current model) ............................................................. 15  \n• Model 2. Updated DE modified gain scores model ........ 19  \n• Model 3. The student growth percentiles (SGP) model ......................................................................... 23  \n• Model 4. The adequate growth percentiles (AGP) model ......................................................................... 27  \n• Evaluation Metrics for Models 1 through 4 ..................... 31  \n• Study Group Feedback and Additional Analyses ............ 33  \nSUMMARY AND FEEDBACK .................................................. 37  \nREFERENCES .......................................................................... 39  \nAPPENDIX 1: PROFICIENCY INDICATORS............................ 40  \nAPPENDIX 2: ADDITIONAL ANALYSES FOR MODEL 2 ........ 42  \nAPPENDIX 3: STUDENT-LEVEL GROWTH METRIC DISTRIBUTIONS....................................................... 47  \nAPPENDIX 4: STUDENT-LEVEL CORRELATIONS OF GROWTH METRICS WITH ACHIEVEMENT ...................... 52  \nPAGE 2  \nDELAWARE DEPARTMENT OF EDUCAT ION GROWTH MODEL INVESTIGATION: A Report of the Growth Model Study Group  \nTABLE OF TABLES  \nTABLE 1. Summary of Growth Model Features ...................... 12  \nTABLE 2. Evaluation Metrics...................................................... 13  \nTABLE 3. Descriptives of Growth Indicators, Model 1............ 15  \nTABLE 4. Correlations among School-level Proficiency and Model 1 Growth Indices ................................. 16  \nTABLE 5. Descriptives of ELA Growth Index by Quartile of Current Proficiency, Model 1 ................................. 17  \nTABLE 6. Descriptives of Math Growth Index by Quartile of Current Proficiency, Model 1 ................................. 17  \nTABLE 7. Descriptives of ELA Growth Index by Quartile of Prior Proficiency, Model 1 ...................................... 18  \nTABLE 8. Descriptives of Math Growth Index by Quartile of Prior Proficiency, Model 1 ...................................... 18  \nTABLE 9. Descriptives of Growth Indicators, Model 2 (mean-defined, capped variation) ............................. 19  \nTABLE 10. Correlations among School-level Proficiency and Model 2 Growth Indices ................................. 20  \nTABLE 11. Descriptives of ELA Growth Index by Quartile of Current Proficiency, Model 2 ................................. 21  \nTABLE 12. Descriptives of Math Growth Index by Quartile of Current Proficiency, Model 2 ................................. 21  \nTABLE 13. Descriptives of ELA Growth Index by Quartile of Prior Proficiency, Model 2 ...................................... 22  \nTABLE 14. Descriptives of Math Growth Index by Quartile of Prior Proficiency, Model 2 ....","cbCaicMuKmPeGlHe","https://ap.wps.com/l/cbCaicMuKmPeGlHe","pdf",6368342,53,"English","# Executive Summary\n# Background\n# Study Group Process\n# Growth Study Group Priorities for a Growth Model for Delaware’s Accountability System\n# Models to Study\n# Evaluation Metrics\n# Descriptives and Additional Analyses for Model 2\n# Analysis Results\n## Model 1: DE modified gain scores model (current model)\n## Model 2: Updated DE modified gain scores model\n## Model 3: Student growth percentiles (SGP) model\n## Model 4: Adequate growth percentiles (AGP) model\n# Summary and Feedback\n# References\n# Appendix 1: Proficiency Indicators\n# Appendix 2: Additional Analyses for Model 2\n# Appendix 3: Student-level Growth Metric Distributions\n# Appendix 4: Student-level Correlations of Growth Metrics with Achievement","[{\"question\":\"What is the purpose of the Growth Model Study Group report for Delaware?\",\"answer\":\"The report evaluates student growth measurement models intended for Delaware’s accountability system, detailing priorities, model options, and evidence from analysis results and evaluation metrics.\"},{\"question\":\"Which growth models are compared in the analysis results?\",\"answer\":\"The report analyzes four models: the current DE modified gain scores model (Model 1), an updated DE modified gain scores model (Model 2), the student growth percentiles (SGP) model (Model 3), and the adequate growth percentiles (AGP) model (Model 4).\"},{\"question\":\"How does the report assess model performance and relationships to achievement?\",\"answer\":\"It provides evaluation metrics plus descriptive statistics and correlation analyses across models, including correlations among school-level proficiency and growth indices and relationships between growth metrics and prior achievement in multiple tables and appendices.\"}]","DELAWARE DEPARTMENT OF EDUCATION GROWTH MODEL INVESTIGATION - A Report of the Growth Model Study Group - December 4, 2024 | PDF",1792056990,134]