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A quantitative approach is applied: data are collected via a questionnaire administered to 51 students using Duolingo, selected through convenience sampling. Numerical results are analyzed using SPSS. Findings show positive attitudes toward Duolingo and support the hypothesis that it can improve students’ vocabulary learning achievement. The study recommends English teachers use Duolingo as vocabulary-learning media.",{"@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/an-investigation-into-the-effect-of-using-duolingo-application-to-enhance-students-vocabulary-the-case-of-second-year-lmd-students-of-english-at-mohamed-kheider-university-of-biskra/415778/",{"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/an-investigation-into-the-effect-of-using-duolingo-application-to-enhance-students-vocabulary-the-case-of-second-year-lmd-students-of-english-at-mohamed-kheider-university-of-biskra/415778.png","ImageObject",300,407,{"name":92,"@type":93},"Pentious","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-06","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the main purpose of the study?","Question",{"text":112,"@type":113},"The study examines whether implementing the Duolingo application can improve students’ English vocabulary achievement.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How were the data collected and analyzed?",{"text":117,"@type":113},"Data were collected using a questionnaire administered to 51 L2 LMD students who use Duolingo. Analysis used SPSS to examine numerical data from closed-ended questionnaire items.",{"name":119,"@type":110,"acceptedAnswer":120},"What were the study results regarding Duolingo?",{"text":121,"@type":113},"Results indicate that L2 students hold positive attitudes toward using Duolingo for vocabulary learning, and the hypothesis was accepted.","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},415778,1790719235,{"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":39,"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},1374404730887,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","University Mohamed Kheider of Biskra Faculty of Letters and Languages  \nDepartment of English Language and Literature  \nMASTER THESIS  \nLetters and Foreign Languages English Language Sciences of the language  \nSubmitted and Defended by:  \nMs. SOUIKI KHOULOD  \nAn investigation into the effect of using Duolingo application to enhance  \nstudents’ vocabulary  \nThe case of second year LMD students of English at Mohamed Kheider University of  \nBiskra  \nA dissertation submitted to the department of English and Literature in partial fulfillment of the requirements for degree of Master sciences of the language  \nBoard of Examiners  \nDr.  \nDr.  \nMr.  \nBENIDIR SAMIRA  \nSALHI AHLEM  \nBECHAR MAAMAR  \nMCB  \nMCA  \nMAA  \nBiskra  \nBiskra  \nBiskra  \nChairperson  \nExaminer  \nSupervisor  \nAcademic Year: 2022/2  \nUniversity of Mohamed Kheider-Biskra  \nFaculty of Letters and Languages  \nDepartment of the English Language and Literature  \nSupervisor: Mr. Bechar Maamar  \nCandidate: Souiki Khouloud  \nSpecialty: Sciences of the language  \nDate: 08/06/2023  \nDECLARATION OF INTEGRITY  \nI,“Souiki Khouloud”, solemnly declare that the dissertation titled \"The effect of using  \nDuolingo application to enhance students’ vocabulary. The case of second year LMD students of English at Mohamed Kheider  \nUniversity of Biskra\"  \nsubmitted to the Department of the English language and Literature at Biskra University is entirely my own work, free from plagiarism, and has not been submitted to anyother educational institution. I have appropriately acknowledged and cited all sources used, and I have conducted myself with academic integrity throughout the process. I understand the severe consequences of academic misconduct and affirm the authenticity of my dissertation.  \nSignature  \nDedication  \nI dedicate my research work to my lovely family. I would like to give my entire gratitude and appreciation to my beloved and precious father Madani, My deep love and profound affection go to my dear mother ‘Houda ’ to whom Iowe a great debt. To my brothers, Mostafa and Mohamed, to my beautiful sisters Aisha and Sounia for their patience and help to complete this investigation. Special thanks go to my uncle Souiki Khaled and his beautiful wife Saliha who have supported me throughout this research.  \nAcknowledgments  \nAll praises to be Allah (SWT), the Almighty and Merciful, for having granted me with the opportunity to accomplish this work.  \nPeace and salutation are upon the Greatest Prophet Muhammad  \nPBUH, his family, companions and adherents. Iam forever grateful to my supervisor Mr. BecharMaamar for his support, advice and guidance throughout the research process. I would like to extend my gratitude to the board of examiners:  \nDr. Salhi Ahlem and Dr. Benidir Samira for the time they spent reading and evaluating my work and for their remarks and comments to improve the quality of this dissertation.  \nIam also very thankful to second year students that have provided us with the required data to accomplish this project.  \nAbstract  \nThis present study aims to investigate whether the implementation of Duolingo application can enhance students’ English vocabulary achievement. It has dealt with L2 LMD students in the Department of English at Mohamed Kheider University of Biskra. The study has adopted a quantitative method research for data collection and data analysis. For data collection, a questionnaire is administered to fifty-one (51) L2 LMD students who use Duolingo selected based on convenience sampling at the Department of English. Concerning data analysis, the computer program Statistical Package for Social Sciences (SPSS) is used to analyze the numerical data obtained from the closed-ended items of the questionnaire. The results of the study have demonstrated that L2 students have positive attitudes towards using Duolingo to learn vocabulary. That means that the hypothesis of this study was accepted and Duolingo Application can be used to improve students’ achievement i","cbCaih5U6gwJRg75","https://ap.wps.com/l/cbCaih5U6gwJRg75","pdf",1910461,91,"English","# Abstract\n## List of Abbreviations and Acronyms\n## General Introduction\n## Introduction","[{\"question\":\"What is the main purpose of the study?\",\"answer\":\"The study examines whether implementing the Duolingo application can improve students’ English vocabulary achievement.\"},{\"question\":\"How were the data collected and analyzed?\",\"answer\":\"Data were collected using a questionnaire administered to 51 L2 LMD students who use Duolingo. Analysis used SPSS to examine numerical data from closed-ended questionnaire items.\"},{\"question\":\"What were the study results regarding Duolingo?\",\"answer\":\"Results indicate that L2 students hold positive attitudes toward using Duolingo for vocabulary learning, and the hypothesis was accepted.\"}]","An investigation into the effect of using Duolingo application to enhance students’ vocabulary - The case of second year LMD students of English at Mohamed Kheider University of Biskra | PDF",1790602803,229]