<codeBook xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xsi:schemaLocation="ddi:codebook:2_5 http://www.ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" xmlns="ddi:codebook:2_5">
  <docDscr>
    <citation>
      <titlStmt>
        <titl xml:lang="sv">Gymnasieelevers självuppfattning och engagemang i en matematisk problemlösningskontext</titl>
        <parTitl xml:lang="en">Upper secondary students mathematics self-beliefs in a problem-solving context</parTitl>
        <IDNo agency="SND">2026-1-1</IDNo>
        <IDNo agency="ltu.se">645401</IDNo>
        <IDNo agency="DOI">https://doi.org/10.5878/y87v-t432</IDNo>
      </titlStmt>
      <prodStmt>
        <producer xml:lang="en" abbr="SND">Swedish National Data Service</producer>
        <producer xml:lang="sv" abbr="SND">Svensk nationell datatjänst</producer>
      </prodStmt>
      <holdings URI="https://doi.org/10.5878/y87v-t432">Landing page</holdings>
    </citation>
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  <stdyDscr>
    <citation>
      <titlStmt>
        <titl xml:lang="sv">Gymnasieelevers självuppfattning och engagemang i en matematisk problemlösningskontext</titl>
        <parTitl xml:lang="en">Upper secondary students mathematics self-beliefs in a problem-solving context</parTitl>
        <IDNo agency="SND">2026-1-1</IDNo>
        <IDNo agency="ltu.se">645401</IDNo>
        <IDNo agency="DOI">https://doi.org/10.5878/y87v-t432</IDNo>
      </titlStmt>
      <rspStmt>
        <AuthEnty xml:lang="en" affiliation="Department of Health, Education and Technology, Luleå University of Technology">Bergqvist, Erik</AuthEnty>
        <AuthEnty xml:lang="sv" affiliation="Institutionen för hälsa, lärande och teknik, Luleå tekniska universitet">Bergqvist, Erik</AuthEnty>
      </rspStmt>
      <prodStmt />
      <distStmt>
        <distrbtr xml:lang="en" abbr="SND" URI="https://snd.se">Swedish National Data Service</distrbtr>
        <distrbtr xml:lang="sv" abbr="SND" URI="https://snd.se">Svensk nationell datatjänst</distrbtr>
        <distDate xml:lang="en" date="2026-01-12" />
      </distStmt>
      <verStmt>
        <version elementVersion="1" elementVersionDate="2026-01-12" />
      </verStmt>
      <holdings URI="https://doi.org/10.5878/y87v-t432">Landing page</holdings>
    </citation>
    <stdyInfo>
      <subject>
        <keyword xml:lang="en" vocab="ELSST" vocabURI="https://elsst.cessda.eu/id/6/94c77dab-f008-4713-961d-dc21495b1fcd">PROBLEM SOLVING</keyword>
        <keyword xml:lang="sv" vocab="ELSST" vocabURI="https://elsst.cessda.eu/id/6/94c77dab-f008-4713-961d-dc21495b1fcd">PROBLEMLÖSNING</keyword>
        <keyword xml:lang="en" vocab="ELSST" vocabURI="https://elsst.cessda.eu/id/6/cc47b7aa-19ec-40d8-bf81-4e6958bbcd70">MATHEMATICS EDUCATION</keyword>
        <keyword xml:lang="sv" vocab="ELSST" vocabURI="https://elsst.cessda.eu/id/6/cc47b7aa-19ec-40d8-bf81-4e6958bbcd70">UTBILDNING I MATEMATIK</keyword>
        <topcClas xml:lang="en" vocab="CESSDA Topic Classification" vocabURI="https://vocabularies.cessda.eu/vocabulary/TopicClassification?code=Education.HigherAndFurtherEducation">Higher and further education</topcClas>
        <topcClas xml:lang="sv" vocab="CESSDA Topic Classification" vocabURI="https://vocabularies.cessda.eu/vocabulary/TopicClassification?code=Education.HigherAndFurtherEducation">Gymnasial och högre utbildning</topcClas>
      </subject>
      <abstract xml:lang="en" contentType="abstract">This dataset contains self-reported responses from 76 Swedish upper secondary students enrolled in an advanced mathematics course. The data focus on mathematics self-beliefs and engagement in a problem-solving context, along with related background variables such as legal gender and prior mathematics achievement. It is intended for research on motivation and performance in mathematics education. Refer to codebook.csv for variable descriptions and questionnaire items in Swedish and English.  The dataset was prepared by merging raw data from two tests conducted two weeks apart. Student responses were matched using legal gender, mathematics class ID, problem-solving group ID, and prior mathematics grade. Factor scores were estimated from a unidimensional IRT model using Maximum A Posteriori (MAP) estimation and summarized by the median.</abstract>
      <abstract xml:lang="sv" contentType="abstract">Denna datamängd innehåller självrapporterade svar från 76 svenska gymnasieelever som går en avancerad matematikkurs. Datamängden fokuserar på matematikens självuppfattning och engagemang i ett problemlösningssammanhang, tillsammans med relaterade bakgrundsvariabler som juridiskt kön och tidigare matematikprestationer. Den är avsedd för forskning om motivation och prestationer i matematikutbildning. Se codebook.csv för variabelbeskrivningar och enkätfrågor på svenska och engelska. Datamängden framställdes genom att kombinera rådata från två testtillfällen med ett intervall på två veckor mellan dem. Elevernas svar matchades med hjälp av juridiskt kön, matematikklass-ID, problemlösningsgrupp-ID och tidigare matematikbetyg. Faktorpoäng uppskattades från en endimensionell IRT-modell, med hjälp av Maximum A Posteriori (MAP)-uppskattning, och sammanfattades med medianen.</abstract>
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        <collDate xml:lang="en" date="2022-03-14" event="start">2022-03-14</collDate>
        <collDate xml:lang="en" date="2022-03-29" event="end">2022-03-29</collDate>
        <nation xml:lang="en" abbr="SE">Sweden</nation>
        <nation xml:lang="sv" abbr="SE">Sverige</nation>
        <anlyUnit xml:lang="en" unit="Group">Group<concept vocab="DDI Analysis Unit" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/AnalysisUnit/2.1.3?languageVersion=en-2.1.3">Group</concept></anlyUnit>
        <anlyUnit xml:lang="sv" unit="Grupp">Grupp<concept vocab="DDI Analysis Unit" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/AnalysisUnit/2.1.3?languageVersion=sv-2.1.3">Grupp</concept></anlyUnit>
        <anlyUnit xml:lang="en" unit="Individual">Individual<concept vocab="DDI Analysis Unit" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/AnalysisUnit/2.1.3?languageVersion=en-2.1.3">Individual</concept></anlyUnit>
        <anlyUnit xml:lang="sv" unit="Individ">Individ<concept vocab="DDI Analysis Unit" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/AnalysisUnit/2.1.3?languageVersion=sv-2.1.3">Individ</concept></anlyUnit>
        <universe xml:lang="en">Students in the third year of a Swedish upper secondary school enrolled in an advanced mathematics course.</universe>
        <universe xml:lang="sv">Elever i årskurs 3 på en svensk gymnasieskola som läser avancerad kurs i matematik.</universe>
        <dataKind xml:lang="en">Numeric</dataKind>
        <dataKind xml:lang="en">Text</dataKind>
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    <method>
      <dataColl>
        <timeMeth xml:lang="en">Cross-section<concept vocab="DDI Time Method" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/TimeMethod/1.2.3?languageVersion=en-1.2.3">Cross-section</concept></timeMeth>
        <timeMeth xml:lang="sv">Tvärsnitt<concept vocab="DDI Time Method" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/TimeMethod/1.2.3?languageVersion=sv-1.2.3">Tvärsnitt</concept></timeMeth>
        <timeMeth xml:lang="en">Time series: Discrete<concept vocab="DDI Time Method" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/TimeMethod/1.2.3?languageVersion=en-1.2.3">Time series: Discrete</concept></timeMeth>
        <timeMeth xml:lang="sv">Tidsserie: Diskret<concept vocab="DDI Time Method" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/TimeMethod/1.2.3?languageVersion=sv-1.2.3">Tidsserie: Diskret</concept></timeMeth>
        <sampProc xml:lang="en">The students were selected because they were enrolled in an advanced mathematics course designed to prepare them for future academic studies. Consequently, the course content was both theoretically rigorous and mathematically advanced.<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=en-2.0.1">The students were selected because they were enrolled in an advanced mathematics course designed to prepare them for future academic studies. Consequently, the course content was both theoretically rigorous and mathematically advanced.</concept></sampProc>
        <sampProc xml:lang="sv">Studenterna valdes ut eftersom de gick en avancerad matematikkurs utformad för att förbereda dem för framtida akademiska studier. Följaktligen var kursinnehållet både teoretiskt rigoröst och matematiskt avancerat.<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=sv-2.0.1">Studenterna valdes ut eftersom de gick en avancerad matematikkurs utformad för att förbereda dem för framtida akademiska studier. Följaktligen var kursinnehållet både teoretiskt rigoröst och matematiskt avancerat.</concept></sampProc>
        <sampProc xml:lang="en">Non-probability: Availability<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=en-2.0.1">Non-probability: Availability</concept></sampProc>
        <sampProc xml:lang="sv">Icke-sannolikhetsurval: tillgänglighetsurval<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=sv-2.0.1">Icke-sannolikhetsurval: tillgänglighetsurval</concept></sampProc>
        <sampProc xml:lang="en">Non-probability: Purposive<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=en-2.0.1">Non-probability: Purposive</concept></sampProc>
        <sampProc xml:lang="sv">Icke-sannolikhetsurval: syftesurval<concept vocab="DDI Sampling Procedure" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/SamplingProcedure/2.0.1?languageVersion=sv-2.0.1">Icke-sannolikhetsurval: syftesurval</concept></sampProc>
        <collMode xml:lang="en">Students completed an online survey at the beginning and end of a two-week period to report on their mathematics self-perceptions and engagement while working collaboratively on a specific mathematical problem-solving task.<concept vocab="DDI Mode of Collection" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/ModeOfCollection/5.0.0?languageVersion=en-5.0.0">Students completed an online survey at the beginning and end of a two-week period to report on their mathematics self-perceptions and engagement while working collaboratively on a specific mathematical problem-solving task.</concept></collMode>
        <collMode xml:lang="sv">Eleverna fyllde i en online-enkät i början och slutet av en tvåveckorsperiod för att rapportera om sina självuppfattningar och engagemang i matematik medan de arbetade med en specifik matematisk problemlösningsuppgift.<concept vocab="DDI Mode of Collection" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/ModeOfCollection/5.0.0?languageVersion=sv-5.0.0">Eleverna fyllde i en online-enkät i början och slutet av en tvåveckorsperiod för att rapportera om sina självuppfattningar och engagemang i matematik medan de arbetade med en specifik matematisk problemlösningsuppgift.</concept></collMode>
        <collMode xml:lang="en">Self-administered questionnaire: Web-based (CAWI)<concept vocab="DDI Mode of Collection" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/ModeOfCollection/5.0.0?languageVersion=en-5.0.0">Self-administered questionnaire: Web-based (CAWI)</concept></collMode>
        <collMode xml:lang="sv">Självadministrerat frågeformulär: webbaserat<concept vocab="DDI Mode of Collection" vocabURI="https://vocabularies.cessda.eu/v2/vocabularies/ModeOfCollection/5.0.0?languageVersion=sv-5.0.0">Självadministrerat frågeformulär: webbaserat</concept></collMode>
      </dataColl>
    </method>
    <dataAccs>
      <useStmt>
        <restrctn xml:lang="en">Access to data through SND. Data are freely accessible.</restrctn>
        <restrctn xml:lang="sv">Åtkomst till data via SND. Data är fritt tillgängliga.</restrctn>
        <conditions elementVersion="info:eu-repo-Access-Terms vocabulary">openAccess</conditions>
      </useStmt>
    </dataAccs>
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