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        <title>Building Bridges: AI Custom Chatbots as Mediators between Mathematics and Physics</title>
        <author>Lademann</author>
        <author>Henze</author>
        <author>Becker-Genschow</author>
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          <title>Building Bridges: AI Custom Chatbots as Mediators between Mathematics and Physics</title>
          <date>2024</date>
          <publisher></publisher>
          <idno type="DOI">10.48550/arxiv.2412.15747</idno>
          
          <idno type="record">lademann2024-building-bridges-ai-custom-chatbot</idno>
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          <note type="rights">open-access</note>
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        <label>existence</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t1" type="phenomenon" ana="#phenomenon" resp="#paper">
        <label>learning with AI-generated explanations of proportional relationships</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t2" type="method" ana="#method" resp="#paper">
        <label>behavioural-experiment</label>
        <term>behavioural-experiment</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>mechanisms</label>
        <term>The chatbot&#x27;s encouraging, motivating tone raises situational interest relative to neutral textbook prose</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>mechanisms</label>
        <term>Accessible, conversational, human-like wording in the AI explanation lowers the processing demands of the material and so reduces cognitive load</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>mechanisms</label>
        <term>Encouraging tone and/or the lowered cognitive load raise students&#x27; confidence that they can solve the task themselves</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>mechanisms</label>
        <term>Because students never used the chatbot themselves, individual learning difficulties were never diagnosed or addressed, blunting any performance effect</term>
        <note>status: the paper&#x27;s own words: It is possible that</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>Generalizability is limited by sample size, the snapshot implementation period, and the single topic and target group chosen.</label>
        <note>what this limits: the generalisation of every result: THE SIZE OF THE SAMPLE AND THE BRIEF IMPLEMENTATION PERIOD (SNAPSHOT) AS WELL AS THE NECESSITY OF SELECTING A PA[rticular topic and group]</note>
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        <label>Materials were delivered centrally, so students never interacted with the chatbot themselves and individual differences in use could not be captured.</label>
        <note>what this limits: what the intervention actually was: THE LEARNING MATERIALS WERE PROVIDED IN A CENTRALIZED MANNER, WHICH RESULTED IN THE LACK OF CONSIDERATION FOR INDIVIDUAL DIFFERENCES IN UTILIZATION - the students did not use the chatbot themselves</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>The performance data are too thin to support a conclusion about learning outcomes.</label>
        <note>what this limits: the learning-outcome question specifically: IT IS NOT POSSIBLE TO PROVIDE A DEFINITIVE ANSWER TO RQ5 BASED ON THE DATA COLLECTED IN THIS STUDY</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>The primary outcome did not move, and the conclusion says so plainly while the abstract calls the same result indefinite.</label>
        <note>what this limits: the claim that AI-generated materials improve learning: the conclusion states no notable differences were identified in the performance test and that the influence remains unclear</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>Generalisability is constrained by three named factors, including the brief period, which the authors themselves call a snapshot.</label>
        <note>what this limits: extending these results to AI-generated materials in general: the authors name sample size, a brief implementation period they call a snapshot, and the particular topic and target group</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>The mechanism relied on to keep answers accurate is stated as a reduction in risk, not a guarantee.</label>
        <note>what this limits: retrieval-augmented generation as a fix for factual error in these materials: the paper states it reduces the risk of hallucinations rather than removing it</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>instructing students who did not complete a task to select GUESS, so those responses are dropped from the evaluation</label>
        <note>eliminates: non-attempts entering the scored set and being read as wrong answers or as performance · outcome (stated by the tagger, no quotation): held</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>custom chatbots</label>
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        <label>GPTs</label>
        <term>GPTs</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>effect on learning outcomes - AS THE ABSTRACT PUTS IT: an indefinite impact, stated in the same sentence as the significant gains in emotion, interest and self-efficacy</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>effect on learning outcomes - AS THE CONCLUSION PUTS IT: no notable differences in the performance test, and the influence remains unclear</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>custom chatbot - a configured instance of a vendor&#x27;s LLM, which the paper notes OpenAI designates by a different name</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>replicates → previous research on emotions in chatbot-supported learning (reference [29])</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>custom chatbots —same-as→ GPTs</label>
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        <note>strength of the relation: 1</note>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>Cronbach&#x27;s alpha</label>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t23" type="content_tags" ana="#content_tags.statistics[1]" resp="#tagger">
        <label>Shapiro-Wilk normality test</label>
        <term>Shapiro-Wilk normality test</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t24" type="content_tags" ana="#content_tags.statistics[2]" resp="#tagger">
        <label>Mann-Whitney U test</label>
        <term>Mann-Whitney U test</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t25" type="content_tags" ana="#content_tags.statistics[3]" resp="#tagger">
        <label>effect size (Cohen&#x27;s d)</label>
        <term>effect size (Cohen&#x27;s d)</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>inter-rater reliability (weighted kappa)</label>
        <term>inter-rater reliability (weighted kappa)</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>standard deviation</label>
        <term>standard deviation</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t28" type="content_tags" ana="#content_tags.statistics[6]" resp="#tagger">
        <label>mean</label>
        <term>mean</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t29" type="content_tags" ana="#content_tags.findings[0]" resp="#tagger">
        <label>Sixth-graders who learned from a custom-chatbot-generated explanation reported more positive-activating emotions, more situational interest and higher self-efficacy, and lower intrinsic and extrinsic cognitive load, than those who learned from textbook material, while learning outcomes showed no clear effect.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>The two groups did not differ on the overall score of the performance test.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>On two values of the tabular subtask B the control group scored significantly higher than the AI-material group.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t32" type="content_tags" ana="#content_tags.findings[3]" resp="#tagger">
        <label>On subtask C the AI-material group scored significantly higher.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t33" type="content_tags" ana="#content_tags.findings[4]" resp="#tagger">
        <label>The two groups were equivalent in prior interest in mathematics before the intervention.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t34" type="content_tags" ana="#content_tags.findings[5]" resp="#tagger">
        <label>The reduction in cognitive load in the experimental group did not carry over into any measurable performance gain on the achievement test.</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
      </span>
      <span xml:id="t35" type="content_tags" ana="#content_tags.definitions[0]" resp="#tagger">
        <label>Large Language Models (LLMs)</label>
        <term>Large Language Models (LLMs)</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t36" type="content_tags" ana="#content_tags.definitions[1]" resp="#tagger">
        <label>chatbots</label>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>Retrieval Augmented Generation (RAG)</label>
        <term>Retrieval Augmented Generation (RAG)</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>multiple representations</label>
        <term>multiple representations</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>GPTs</label>
        <term>GPTs</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>type of learning material</label>
        <term>type of learning material</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>conventional textbook material</label>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>intrinsic and extrinsic cognitive load</label>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>self-efficacy expectation</label>
        <term>self-efficacy expectation</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>learning time</label>
        <term>learning time</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>Subject-specific interest</label>
        <term>Subject-specific interest</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>transfer</label>
        <term>transfer</term>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>N = 214 — number of sixth-grade German secondary-school students in the randomized controlled study</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>11.7 years (SD = 0.51) — mean age of the participating students</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t52" type="content_tags" ana="#content_tags.quantities[2]" resp="#tagger">
        <label>15 minutes — learning time allotted identically to both groups</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t53" type="content_tags" ana="#content_tags.quantities[3]" resp="#tagger">
        <label>30 minutes — time allowed for the performance test measuring learning and transfer</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>= 0.8469 — mean weighted-kappa inter-rater agreement across the rating categories for subtask D</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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      <span xml:id="t55" type="content_tags" ana="#content_tags.quantities[5]" resp="#tagger">
        <label>M = 2.24; SD = 0.88 vs M = 2.38; SD = 0.95 — last-term mathematics report-card grades of the control group versus the experimental group (German scale, 1 = best)</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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        <label>GPT-4.0 — the OpenAI base model the custom chatbot was configured on</label>
        <note type="quotation-withheld">Quotation withheld because this record is not cleared for redistribution.</note>
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