[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-186921-en":3,"doc-seo-186921-105":30,"detail-sidebar-cat-0-en-105":92},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},186921,1099514068035,"Ezra","https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c",8,"Research & Report","Pretest vs Posttest Analysis for Experimental and Control Groups","This document presents a comparative analysis of pretest and posttest scores for two groups: an experimental group (Princiled CLT) and a control group (Standard CLT). The data is organized by subject number, detailing scores on a scale of 0-4 for both pretest and posttest, along with the difference (D) and the squared difference (D2). The experimental group shows a sum of differences (ΣD) of +4 and a sum of squared differences (ΣD2) of 4.5, indicating an overall improvement in scores from pretest to posttest. In contrast, the control group exhibits a sum of differences (ΣD) of -3 and a sum of squared differences (ΣD2) of 1.5, suggesting a slight decline or less improvement overall. Further statistical analysis is provided in a table comparing the Standard Deviation (SD), difference (d), degrees of freedom (df), and t-values for both groups. The experimental group has an SD of 0.4086 and a t-value of 1.998, while the control group has an SD of 0.2211 and a t-value of -2.768. The provided data implies the effectiveness of the experimental teaching method compared to the standard method.","| Subject Number\u003Cbr>(01PCM) | Pretest (0 – 4) | Posttest (0 – 4) | D | D2 |\n| --- | --- | --- | --- | --- |\n| 1 | 2.0 | 2.0 | 0 | 0 |\n| 2 | 2.5 | 2.5 | 0 | 0 |\n| 3 | 2.0 | 2.0 | 0 | 0 |\n| 4 | 2.0 | 2.0 | 0 | 0 |\n| 5 | 2.0 | 2.0 | 0 | 0 |\n| 6 | 2.0 | 2.0 | 0 | 0 |\n| 7 | 2.5 | 3.0 | +0.5 | +0.25 |\n| 8 | 2.0 | 2.5 | +0.5 | +0.25 |\n| 9 | 2.5 | 2.5 | 0 | 0 |\n| 10 | 2.5 | 2.5 | 0 | 0 |\n| 11 | 2.5 | 2.5 | 0 | 0 |\n| 12 | 2.0 | 2.0 | 0 | 0 |\n| 13 | 2.5 | 3.5 | +1 | +1 |\n| 14 | 2.0 | 2.0 | 0 | 0 |\n\n\n| 15 | 2.5 | 3.0 | +0.5 | +0.25 |\n| --- | --- | --- | --- | --- |\n| 16 | 2.0 | 2.0 | 0 | 0 |\n| 17 | 2.0 | 3.0 | +1 | +1 |\n| 18 | 2.0 | 2.0 | 0 | 0 |\n| 19 | 2.5 | 2.0 | -0.5 | +0.25 |\n| 20 | 2.0 | 2.0 | 0 | 0 |\n| 21 | 2.0 | 2.5 | +0.5 | +0.25 |\n| 22 | 2.5 | 2.5 | 0 | 0 |\n| 23 | 2.5 | 2.0 | -0.5 | +0.25 |\n| 24 | 2.5 | 3.5 | +1 | +1 |\n| ΣD = +4 ΣD2 = 4.5 |  |  |  |  |\n\n\n| Subject Number\u003Cbr>(01 PA1) | Pretest (0 – 4) | Posttest (0 – 4) | D | D2 |\n| --- | --- | --- | --- | --- |\n| 1 | 3.0 | 2.5 | -0.5 | +0.25 |\n| 2 | 2.0 | 1.5 | -0.5 | +0.25 |\n| 3 | 2.0 | 1.5 | -0.5 | +0.25 |\n| 4 | 2.5 | 2.5 | 0 | 0 |\n| 5 | 2.5 | 2.5 | 0 | 0 |\n| 6 | 2.5 | 2.5 | 0 | 0 |\n| 7 | 2.5 | 2.0 | -0.5 | +0.25 |\n| 8 | 2.5 | 2.5 | 0 | 0 |\n| 9 | 2.5 | 2.5 | 0 | 0 |\n| 10 | 3.0 | 2.5 | -0.5 | +0.25 |\n| 11 | 2.5 | 2.5 | 0 | 0 |\n| 12 | 2.0 | 2.0 | 0 | 0 |\n| 13 | 3.0 | 3.0 | 0 | 0 |\n| 14 | 2.0 | 2.0 | 0 | 0 |\n| 15 | 2.0 | 2.0 | 0 | 0 |\n| 16 | 2.5 | 2.5 | 0 | 0 |\n| 17 | 2.0 | 2.0 | 0 | 0 |\n| 18 | 1.5 | 1.5 | 0 | 0 |\n| 19 | 2.0 | 1.5 | -0.5 | +0.25 |\n| 20 | 2.0 | 2.0 | 0 | 0 |\n| 21 | 2.0 | 2.0 | 0 | 0 |\n| 22 | 2.0 | 2.0 | 0 | 0 |\n| 23 | 2.0 | 2.0 | 0 | 0 |\n| 24 | 2.0 | 2.0 | 0 | 0 |\n| ΣD = -3 ΣD2 = 1.5 |  |  |  |  |\n\n\n| Groups | SD | d | df | t | Level of Significance |\n| --- | --- | --- | --- | --- | --- |\n| Experimental (Princiled CLT) | 0.40860313475 | 0.40789375431 | 23 | 1.99826313465 | – |\n| Control (Standard CLT) | 0.22116293421 | -0.5651941653 | 23 | -2.7688746211 | – |","cbCaib7Fi7ULphji","https://ap.wps.com/l/cbCaib7Fi7ULphji","pdf",120902,1,12,"English","en",105,"# Pretest vs. Posttest Analysis\n## Experimental Group (Princiled CLT)\n## Control Group (Standard CLT)\n## Statistical Comparison","[{\"question\":\"What is the purpose of this document?\",\"answer\":\"This document analyzes and compares pretest and posttest scores between an experimental group and a control group to evaluate the effectiveness of a teaching method.\"},{\"question\":\"What were the total score differences for each group?\",\"answer\":\"The experimental group showed a total score difference (ΣD) of +4, while the control group had a total score difference (ΣD) of -3.\"},{\"question\":\"What are the key statistical findings for each group?\",\"answer\":\"The experimental group had a standard deviation of 0.4086 and a t-value of 1.998, suggesting a positive impact. The control group had a standard deviation of 0.2211 and a t-value of -2.768, indicating a less favorable outcome.\"}]","Pretest vs Posttest Analysis for Experimental and Control Groups | PDF",1788378148,30,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":34,"description":14,"schema_data":35,"social_meta":87,"head_meta":89,"extra_data":91,"updated_unix":28},"pretest-vs-posttest-analysis-for-experimental-and-control-groups","",{"@graph":36,"@context":86},[37,54,69],{"@type":38,"itemListElement":39},"BreadcrumbList",[40,44,48,51],{"item":41,"name":42,"@type":43,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":45,"name":46,"@type":43,"position":47},"https://docshare.wps.com/document/","Document",2,{"item":49,"name":12,"@type":43,"position":50},"https://docshare.wps.com/document/research-report/",3,{"item":52,"name":13,"@type":43,"position":53},"https://docshare.wps.com/document/pretest-vs-posttest-analysis-for-experimental-and-control-groups/186921/",4,{"url":52,"name":13,"@type":55,"author":56,"headline":13,"publisher":58,"fileFormat":61,"inLanguage":23,"description":14,"dateModified":62,"datePublished":63,"encodingFormat":61,"isAccessibleForFree":64,"interactionStatistic":65},"DigitalDocument",{"name":9,"@type":57},"Person",{"url":41,"name":59,"@type":60},"DocShare","Organization","application/pdf","2026-09-05","2026-09-02",true,{"@type":66,"interactionType":67,"userInteractionCount":20},"InteractionCounter",{"@type":68},"ViewAction",{"@type":70,"mainEntity":71},"FAQPage",[72,78,82],{"name":73,"@type":74,"acceptedAnswer":75},"What is the purpose of this document?","Question",{"text":76,"@type":77},"This document analyzes and compares pretest and posttest scores between an experimental group and a control group to evaluate the effectiveness of a teaching method.","Answer",{"name":79,"@type":74,"acceptedAnswer":80},"What were the total score differences for each group?",{"text":81,"@type":77},"The experimental group showed a total score difference (ΣD) of +4, while the control group had a total score difference (ΣD) of -3.",{"name":83,"@type":74,"acceptedAnswer":84},"What are the key statistical findings for each group?",{"text":85,"@type":77},"The experimental group had a standard deviation of 0.4086 and a t-value of 1.998, suggesting a positive impact. The control group had a standard deviation of 0.2211 and a t-value of -2.768, indicating a less favorable outcome.","https://schema.org",{"og:url":52,"og:type":88,"og:title":13,"og:site_name":59,"og:description":14},"article",{"robots":90,"canonical":52},"index,follow",{"doc_id":7,"site_id":24},{"code":4,"msg":5,"data":93},[94,98,102,106,111,116,121,123,128,131,135],{"id":20,"doc_module":4,"doc_module_name":46,"category_name":95,"show_sort_weight":96,"slug":97},"Story & Novel",90,"story-novel",{"id":47,"doc_module":4,"doc_module_name":46,"category_name":99,"show_sort_weight":100,"slug":101},"Literature",80,"literature",{"id":53,"doc_module":4,"doc_module_name":46,"category_name":103,"show_sort_weight":104,"slug":105},"Exam",70,"exam",{"id":107,"doc_module":4,"doc_module_name":46,"category_name":108,"show_sort_weight":109,"slug":110},5,"Comic",60,"comic",{"id":112,"doc_module":4,"doc_module_name":46,"category_name":113,"show_sort_weight":114,"slug":115},6,"Technology",50,"technology",{"id":117,"doc_module":4,"doc_module_name":46,"category_name":118,"show_sort_weight":119,"slug":120},7,"Healthcare",40,"healthcare",{"id":11,"doc_module":4,"doc_module_name":46,"category_name":12,"show_sort_weight":29,"slug":122},"research-report",{"id":124,"doc_module":4,"doc_module_name":46,"category_name":125,"show_sort_weight":126,"slug":127},9,"Religion & Spirituality",20,"religion-spirituality",{"id":126,"doc_module":4,"doc_module_name":46,"category_name":129,"show_sort_weight":126,"slug":130},"World Cup","world-cup",{"id":132,"doc_module":4,"doc_module_name":46,"category_name":133,"show_sort_weight":132,"slug":134},10,"Lifestyle","lifestyle",{"id":136,"doc_module":4,"doc_module_name":46,"category_name":137,"show_sort_weight":107,"slug":138},19,"General","general"]