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It presents detailed statistical performance metrics derived from the scores of 444 students across 10 academic institutions. The report includes a comprehensive percentile distribution table mapping raw scores to their corresponding percentile rankings, allowing educators to evaluate student performance effectively. Furthermore, it outlines key psychometric properties of the assessment, including the mean score of 20.6, standard deviation of 6.4, median score, and reliability data, which collectively facilitate a rigorous understanding of the exam's difficulty and discriminatory power for standardized testing assessment.",{"@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":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/american-chemical-society-division-of-chemical-education-composite-norms-biochemistry-2017-core/333127/",{"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/american-chemical-society-division-of-chemical-education-composite-norms-biochemistry-2017-core/333127.png","ImageObject",300,407,{"name":92,"@type":93},"Mabel","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-07","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the BC17 assessment measure?","Question",{"text":112,"@type":113},"The BC17 assessment measures core competencies in biochemistry, as represented by the data collected from 444 students across 10 institutions.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is the mean raw score for the BC17 core exam?",{"text":117,"@type":113},"The mean raw score for the exam is 20.6, with a standard deviation of 6.4.",{"name":119,"@type":110,"acceptedAnswer":120},"What is the KR-21 reliability coefficient for this exam?",{"text":121,"@type":113},"The KR-21 reliability coefficient for the BC17 core exam is 0.68.","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},333127,1790218387,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":81,"preview_page_count":4},7971474920318,"https://ap-avatar.wpscdn.com/avatar/74000ee537e6b0ca360?x-image-process=image/resize,m_fixed,w_180,h_180&k=1788430171632181674","American Chemical Society Division of Chemical Education Composite Norms – Biochemistry 2017 (BC17) Core only  \nScores included here for those institutions that gave only the core test.  \nScore  \n40  \n30  \n29  \n28  \n27  \nPercentile  \n100  \n90  \nScore  \n24  \n14  \n10  \nPercentile  \n72  \n16  \n3  \nScore  \n8  \nMean Std. deviation  \nMedian KR-21 reliability Std error/meas  \nPercentile  \n1  \n20.6  \n6.4  \n20  \n0.68  \n3.62  \n\n|  |\n| --- |\n| 39 100 |\n| 38 100 |\n| 37 100 |\n| 36 99 |\n| 35 99 |\n| 34 98 |\n| 33 96 |\n| 32 95 |\n| 31 93 |\n|  |\n|  |\n|  |\n|  |\n| 26 80 |\n| 25 76 |\n\n\n|  |\n| --- |\n| 7 0 |\n| 6 0 |\n| 5 0 |\n| 4 0 |\n| 3 0 |\n| 2 0 |\n| 1 0 |\n| 0 0 |","cbCaiq1GKqxnaSxm","https://ap.wps.com/l/cbCaiq1GKqxnaSxm","pdf",149516,"English","# Examination Overview\n## Psychometric Statistics\n# Percentile Distribution Table","[{\"question\":\"What does the BC17 assessment measure?\",\"answer\":\"The BC17 assessment measures core competencies in biochemistry, as represented by the data collected from 444 students across 10 institutions.\"},{\"question\":\"What is the mean raw score for the BC17 core exam?\",\"answer\":\"The mean raw score for the exam is 20.6, with a standard deviation of 6.4.\"},{\"question\":\"What is the KR-21 reliability coefficient for this exam?\",\"answer\":\"The KR-21 reliability coefficient for the BC17 core exam is 0.68.\"}]","American Chemical Society Division of Chemical Education Composite Norms - Biochemistry 2017 Core | PDF",1790000967]