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It documents study implementation funded by the National Science Foundation and provides a structured study design covering core instruction, the fractions intervention condition, comparison condition, tutor training, measures, fidelity of implementation, and data analysis plans. Results summarize descriptive data, posttest and assessment effects, sensitivity analyses, and classroom observation findings, including correlations and classroom organization.",{"@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/impact-of-a-tier-2-fractions-intervention-on-fifth-grade-students-fractions-achievement-a-technical-report/584579/",{"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/impact-of-a-tier-2-fractions-intervention-on-fifth-grade-students-fractions-achievement-a-technical-report/584579.png","ImageObject",300,407,{"name":92,"@type":93},"Damian","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-10","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 main focus of this technical report?","Question",{"text":112,"@type":113},"The report examines how a Tier 2 fractions intervention affects fifth-grade students’ fractions achievement.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is the intervention study structured?",{"text":117,"@type":113},"The method section covers setting and participants, study design (intervention and comparison conditions), tutor training, measures, implementation fidelity, and planned data analyses.",{"name":119,"@type":110,"acceptedAnswer":120},"What types of results are presented?",{"text":121,"@type":113},"Results include impacts on posttests and performance assessments, sensitivity analyses, quality of explanations, and CLASS observation findings such as tutoring group ratings and related student outcomes.","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},584579,1792210181,{"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},137451208677,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Impact of a Tier 2 Fractions Intervention on Fifth-Grade Students’ Fractions  \nAchievement: A Technical Report  \n2018  \nMadhavi Jayanthi  \nRussell Gersten  \nSamantha Spallone  \nJoseph Dimino  \nRobin Schumacher  \nKeith Smolkowski  \nInstructional Research Group  \nKaren Karp  \nJohns Hopkins  \nKelly Haymond  \nInstructional Research Group  \nThis project was funded by the National Science Foundation (Grant No. DRL-1535214) .  \nCopyright © 2018 Instructional Research Group. Not for reproduction, distribution, or use without permission from Instructional Research Group. Preferred citation is:  \nJayanthi, M. , Gersten, R. , Spallone, S. , Dimino, J. , Schumacher, R. , Smolkowski, K. , Karp , K. , & Haymond, K. (2018) . Impact of a tier 2 fractions intervention on fifth-grade students’ fractions achievement: A technical report. Los Alamitos, CA: Instructional Research Group.  \nTo download a copy of this document, [visit](visit www.inresg.org)[ ](visit www.inresg.org)[www.inresg.org](visit www.inresg.org).  \nAuthor Note  \nThe authors would like to thank Drew Bailey and Francis (Skip) Fennell for their fresh perspectives and counsel throughout the implementation of the study. In addition, the authors would like to thank Pamela Foremski and Christopher Tran for assisting with the research and preparation of the report.  \nTable of Contents  \n1. Executive Summary ................................................................................................... 7  \n2. Introduction ................................................................................................................ 8  \n3. Method ..................................................................................................................... 10  \n3.1 Setting and Participants ................................................................................... 10  \nStudent sample ................................................................................................ 10  \nScreening criteria........................................................................................ 12  \nSample attrition........................................................................................... 13  \nTutor sample .................................................................................................... 14  \n3.2 Study Design ................................................................................................... 15  \nCore classroom mathematics instruction ......................................................... 15  \nFractions intervention condition ....................................................................... 16  \nScope of the fractions content in the intervention ....................................... 18  \nUse of concrete and semi-abstract visual representations ......................... 20  \nRefinements based on the pilot study......................................................... 20  \nComparison condition ...................................................................................... 20  \n3.3 Training of Tutors ............................................................................................. 21  \nOngoing support and feedback to tutors .......................................................... 21  \n3.4 Measures ......................................................................................................... 22  \nStudent measures............................................................................................ 22  \nObservations of tutoring groups ....................................................................... 26  \nSurveys ............................................................................................................ 29  \nClassroom teacher survey of instructional practices................................... 29  \nStudent, tutor, and classroom teacher appraisal surveys ........................... 29  \n3.5 Fidelity of Implementation ............................................","cbCaiagwhyxMCRvf","https://ap.wps.com/l/cbCaiagwhyxMCRvf","pdf",1482374,95,"English","# Executive Summary\n# Introduction\n# Method\n## Setting and Participants\n## Study Design\n## Training of Tutors\n## Measures\n## Fidelity of Implementation\n## Data Analysis\n# Results\n## Impact of the Fractions Intervention on Student Fractions Achievement\n## CLASS Observations of Tutoring Groups","[{\"question\":\"What is the main focus of this technical report?\",\"answer\":\"The report examines how a Tier 2 fractions intervention affects fifth-grade students’ fractions achievement.\"},{\"question\":\"How is the intervention study structured?\",\"answer\":\"The method section covers setting and participants, study design (intervention and comparison conditions), tutor training, measures, implementation fidelity, and planned data analyses.\"},{\"question\":\"What types of results are presented?\",\"answer\":\"Results include impacts on posttests and performance assessments, sensitivity analyses, quality of explanations, and CLASS observation findings such as tutoring group ratings and related student outcomes.\"}]","Impact of a Tier 2 Fractions Intervention on Fifth-Grade Students’ Fractions Achievement - A Technical Report | PDF",1792051496,239]