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science </a></li><li><a href="../19519/metals-and-icp-spectroscopy-1.html">Metals and ICP spectroscopy</a></li><li><a href="../19541/catalysts--1.html">Catalysts </a></li><li><a href="../19580/liquid-crystals-1.html">Liquid crystals</a></li><li><a href="../19665/polymers--1.html">Polymers </a></li><li><a href="../19672/nanotechnology-1.html">Nanotechnology</a></li><li><a href="../19843/environmental-impact-plastics-1.html">Environmental impact - plastics</a></li><li><a href="../19858/superconducting-metals-x-ray-crystallography--1.html">Superconducting metals & X-ray crystallography </a></li><li><a href="../19666/condensation-polymers-1.html">Condensation polymers</a></li><li><a href="../19916/environmental-impact-heavy-metals-1.html">Environmental impact - heavy metals</a></li></ul></li><li><a href="../19284/option-b--1.html" class="father">Option B </a><ul class="level-2"><li><a href="../19290/introduction-to-biochemistry--1.html">Introduction to biochemistry </a></li><li><a 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nuclear fission reactions</a></li><li><a href="../19429/solar-energy-1.html">Solar energy</a></li><li><a href="../19437/environmental-impact-global-warming-1.html">Environmental impact - global warming</a></li><li><a href="../19453/electrochemistry-rechargeable-batteries-fuel-cells-1.html">Electrochemistry, rechargeable batteries & fuel cells</a></li><li><a href="../19458/nuclear-fusion-fission-hl--1.html">Nuclear fusion & fission (HL) </a></li><li><a href="../19470/photovoltaic-cells-and-dsscs-1.html">Photovoltaic cells and DSSCs</a></li></ul></li><li><a href="../19078/option-d-1.html" class="father">Option D</a><ul class="level-2"><li><a href="../19079/pharmaceutical-products-drug-action--1.html">Pharmaceutical products & drug action </a></li><li><a href="../19158/aspirin-penicillin--1.html">Aspirin & penicillin </a></li><li><a href="../19174/opiates-1.html">Opiates</a></li><li><a href="../19184/ph-regulation-of-the-stomach-1.html">pH regulation of the stomach</a></li><li><a href="../19194/antiviral-medications--1.html">Antiviral medications </a></li><li><a href="../19211/environmental-impact-of-some-medications-1.html">Environmental impact of some medications</a></li><li><a href="../19254/taxol-a-chiral-auxiliary-case-study-1.html">Taxol - a chiral auxiliary case study</a></li><li><a href="../19258/nuclear-medicine--1.html">Nuclear medicine </a></li><li><a href="../19273/drug-detection-analysis--1.html">Drug detection & analysis </a></li></ul></li></ul></li><li><a href="../16592/practical-scheme-of-work-ia--1.html">Practical scheme of work & IA </a><ul class="level-1"><li><a href="../16682/internal-assessment-1.html" class="father">Internal Assessment</a><ul class="level-2"><li><a href="../18892/scaffolding-the-investigation-1.html">'Scaffolding' the investigation</a></li><li><a href="../18896/timing-organisation--1.html">Timing & organisation </a></li><li><a href="../18905/choosing-the-research-question-1.html">Choosing the research question</a></li><li><a href="../18946/personal-engagement-1.html">Personal engagement</a></li><li><a href="../18950/exploration-1.html">Exploration</a></li><li><a href="../18957/analysis-1.html">Analysis</a></li><li><a href="../18965/evaluation-1.html">Evaluation</a></li><li><a href="../18966/communication-1.html">Communication</a></li><li><a href="../19882/internal-standardization-of-the-ia-1.html">Internal standardization of the IA</a></li><li><a href="../19901/submitting-the-samples-for-moderation-2.html">Submitting the samples for moderation</a></li><li><a href="../33754/ten-suggestions-for-ias-using-secondary-data-1.html">Ten suggestions for IAs using secondary data</a></li><li><a href="../37544/gaining-full-marks-for-a-databased-ia--1.html">Gaining full marks for a databased IA </a></li><li><a href="../19506/ia-example-marking-exercise--1.html">IA example & marking exercise </a></li><li><a href="../23929/genuine-examples-of-moderated-ia-reports-1.html">Genuine examples of moderated IA reports</a></li><li><a href="../25234/examples-of-teacher-marked-ia-reports--1.html">Examples of teacher-marked IA reports </a></li><li><a href="../37542/history-of-internal-assessment-1.html">History of Internal Assessment</a></li></ul></li><li><a href="../16598/mandatory-laboratory-components-1.html" class="father">Mandatory laboratory components</a><ul class="level-2"><li><a href="../16613/formula-of-magnesium-oxide--1.html">Formula of magnesium oxide </a></li><li><a href="../16612/determining-the-mr-of-an-unknown-gas-1.html">Determining the <i>M</i><sub>r</sub> of an unknown gas</a></li><li><a href="../16615/acid-base-titrations--1.html">Acid-base titrations </a></li><li><a href="../16616/a-green-acid-base-practical-1.html">A green acid-base practical</a></li><li><a href="../16617/analysis-of-aspirin-tablets-1.html">Analysis of aspirin tablets</a></li><li><a href="../16618/caco3-in-egg-shells-1.html">CaCO<sub>3</sub> in egg shells</a></li><li><a href="../16644/enthalpy-changes-1.html">Enthalpy changes</a></li><li><a href="../16631/reaction-rates-1.html">Reaction rates</a></li><li><a href="../16635/rate-dependent-factors-1.html">Rate-dependent factors</a></li><li><a href="../16636/determining-ea-for-a-reaction-1.html">Determining <i>E</i><sub>a</sub> for a reaction</a></li><li><a href="../16637/iodination-of-propanone-1.html">Iodination of propanone</a></li><li><a href="../18144/titrations-with-a-ph-meter-1.html">Titrations with a pH meter</a></li><li><a href="../18355/redox-titration-with-kmno4--1.html">Redox titration with KMnO<sub>4</sub> </a></li><li><a href="../16640/voltaic-cells-1.html">Voltaic cells</a></li><li><a href="../16659/3-d-molecular-modelling--1.html">3-D molecular modelling </a></li></ul></li><li><a href="../17168/other-good-practicals-1.html" class="father">Other good practicals</a><ul class="level-2"><li><a href="../17196/common-chemical-reactions-1.html">Common chemical reactions</a></li><li><a href="../227/elements-oxides-of-the-third-period--1.html">Elements & oxides of the third period </a></li><li><a href="../17239/the-halogens-1.html">The halogens</a></li><li><a href="../17162/boiling-points-of-mixtures-1.html">Boiling points of mixtures</a></li><li><a href="../17170/polarity-of-molecules-1.html">Polarity of molecules</a></li><li><a href="../18083/le-chateliers-principle--1.html">Le Chatelier's principle </a></li><li><a href="../19582/determining-kc-for-an-esterification-reaction-1.html">Determining <i>K</i><sub>c</sub> for an esterification reaction</a></li><li><a href="../18164/redox-reactions-of-vanadium--1.html">Redox reactions of vanadium </a></li><li><a href="../18351/chlorine-in-swimming-pools--1.html">Chlorine in swimming pools </a></li><li><a href="../18178/analysis-of-cuii-ions-in-solution--1.html">Analysis of Cu(II) ions in solution </a></li><li><a href="../18179/percentage-of-copper-in-brass-1.html">Percentage of copper in brass</a></li><li><a href="../18356/electrolytic-cells--1.html">Electrolytic cells </a></li><li><a href="../18598/reactions-of-organic-compounds-1.html">Reactions of organic compounds</a></li><li><a href="../18752/hydrolysis-of-halogenoalkanes-1.html">Hydrolysis of halogenoalkanes</a></li><li><a href="../18784/preparation-of-13-dinitrobenzene--1.html">Preparation of 1,3-dinitrobenzene </a></li><li><a href="../19022/determination-of-an-organic-structure-1.html">Determination of an organic structure</a></li><li><a href="../19887/preparation-of-nylon-66-1.html">Preparation of nylon 6,6</a></li><li><a href="../19343/determination-of-vitamin-c-content--1.html">Determination of vitamin C content </a></li><li><a href="../19342/hydrolysis-of-starch--1.html">Hydrolysis of starch </a></li><li><a href="../19159/preparation-purification-of-aspirin--1.html">Preparation & purification of aspirin </a></li></ul></li><li><a href="../18851/ict-in-practical-work-1.html" class="father">ICT in practical work</a><ul class="level-2"><li><a href="../18852/data-logging--1.html">Data logging </a></li><li><a href="../18853/software-for-graph-plotting--1.html">Software for graph plotting </a></li><li><a href="../18854/spreadsheets-for-data-processing--1.html">Spreadsheets for data processing </a></li><li><a href="../18855/databases-1.html">Databases</a></li><li><a href="../18856/computer-modelling-simulations--1.html">Computer modelling & simulations </a></li></ul></li><li><a href="../16594/group-4-project-1.html" class="father">Group 4 Project</a><ul class="level-2"><li><a href="../16595/practicalities-1.html">Practicalities</a></li><li><a href="../16596/reflective-statement--2.html">Reflective statement </a></li></ul></li><li><a href="../16666/a-new-laboratory-1.html">A new laboratory?</a></li></ul></li><li class="selected"><a href="../16284/exams-1.html">Exams</a><ul class="level-1"><li><a href="../16286/essential-facts-1.html" class="father">Essential Facts</a><ul class="level-2"><li><a 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concepts</a></li><li><a href="../3507/why-tok-chemistry-1.html">Why TOK & Chemistry?</a></li><li><a href="../3505/a-modern-paradigm-1.html">A modern paradigm</a></li></ul></li></ul></li><li><a href="../17783/fast-track-to-tests-questions-1.html">Fast track to tests & questions</a><ul class="level-1"><li><a href="../17784/sl-multiple-choice-tests-on-individual-topics-1.html">SL Multiple choice tests on individual topics</a></li><li><a href="../24351/sl-multiple-choice-quizzes-on-sub-topics-1.html">SL Multiple choice 'quizzes' on sub-topics</a></li><li><a href="../31519/sl-practice-paper-1-exams-1.html">SL Practice Paper 1 exams</a></li><li><a href="../17786/sl-questions-on-each-sub-topic-1.html">SL Questions on each sub-topic</a></li><li><a href="../20431/sl-paper-3-section-a-questions-1.html">SL Paper 3 Section A questions</a></li><li><a href="../17792/sl-questions-on-the-options-1.html">SL Questions on the options</a></li><li><a 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</div><section id="main-content"><div class="blueBg"><h1>Basic information about EURs</h1><hr class="hidden"><p>The results are sent to schools during the first week in July (or JIB Docs (2) Teamary for the November session) and the day afterwards students can log on to the IB website with their own personal code to receive their own results. Approximately one week afterwards the schools receive the component marks and grades so that teachers can see how their students performed on each of the two Papers and how their IA marks were moderated.</p><p>Hopefully most of your students will be pleased with the result they achieve in chemistry. Unfortunately some may not. This can be particularly true in chemistry where a grade of 6 or 7 is a requirement for students wishing to study medicine<sup>1</sup>. If they think they performed better than the grade they actually achieved or if the school thinks that they should have received a higher grade a re-mark can be requested. This is known technically as Enquiry upon Results (EUR). There are five categories of EURs that can be requested.</p><ul><li><p>Category 1 re-mark: The re-mark of externally assessed material for an individual candidate</p></li><li><p>Category 1 report: A report on a category 1 re-mark for an individual candidate</p></li><li><p>Category 2A: The return of externally assessed material by component for all candidates</p></li><li><p>Category 2B: The return of externally assessed material by subject/level for an individual candidate</p></li><li><p>Category 3 re-moderation: The re-moderation of marks for IA by subject/level</p></li></ul><p>All requests must be made through your IB coordinator and must be received by the IB before the official end of the examination session, that is, by 15 September (15 March for the November session). Full information about EURs and their cost is detailed in the IB Diploma Programme Assessment Procedures and Fees and Billing information for IB World Schools both of which are available from the resources centre in My IB.</p><hr class="hidden"><h3>IA moderation</h3><p>Although you will not actually receive the moderation factor from the IB, by comparing the mark out of 24 you awarded each student for their IA with the actual mark received you can determine how you have been moderated. It is not a simple multiplication factor. It actually consists of a multiplication factor and an addition (or subtraction). A perfect moderation factor would be to multiply by 1 and add zero. This takes account of whether you have been consistently high or low in your marking and also whether you have been too harsh or lenient at both the top and the bottom end of the marking range. I often used to find that my best students were moderated down by one or two marks and my students with the lowest marks were moderated up by a mark or two. If the marks have changed little after moderation then there is no serious problem. If there is a big change then you should look carefully at the internal assessment feedback which is released to schools at about the same time as the component breakdown one week after the results are released. This should explain why there is such a discrepancy. If it does not then you can request a Category 3 re-moderation (see below).</p><h4>Footnote</h4><p><sup>1</sup> If your student requires a Grade 6 for university admission and only gets a Grade 5 but does get a Grade A for their Extended Essay in chemistry it might be worth trying to persuade the university that they did actually get 6 points in their Diploma for chemistry overall - this has been known to work!</p><hr class="hidden"></div><hr class="hidden"><div class="greenBg"><h1>Categories of EUR</h1><hr class="hidden"><h3>Category 1 EUR</h3><p>For Category 1 the externally assessed components of a candidate’s work are remarked by a senior examiner. In practice for chemistry only Paper 2 and Paper 3 will actually be remarked as the multiple choice answers for Paper 1 were optically read and, unless it was a sample script, the IA was never seen by an external assessor (except in pandemic times), and even then it was only moderated. A candidate’s grade may be raised or lowered as a result of a Category 1 enquiry. In the past the grade either stayed the same or increased but could not be lowered. Some schools took advantage of this and paid for all their students’ work to be remarked in the hope that some would go up. Now that the mark can also be lowered this practice has stopped. The fees for EURs are listed in ' Fees and Billing information for IB World Schools'. If the grade is changed then the cost of the enquiry is reimbursed. Before requesting a Category 1 enquiry it is worth looking at the marks the student actually received for the four components and seeing how close they are to a grade boundary. Students who only require one or two more marks on Paper 2 or 3 to push them into the next grade are more likely to be successful than those who are in the middle or closer to the lower grade boundary. However examiners are told to mark using exactly the same criteria and standard that they used before and are not looking to give extra marks just because it is an EUR. Very rarely an error, such as one whole question or part question being missed by the first examiner, is found but this is very unusual and most EURs do not result in a change of grade. Just occasionally if there is a serious problem and five candidates’ work is remarked and found to be different by an average of 4% the IB will remark all the students work in that subject from your school at no extra cost.</p><hr class="hidden"><h3>Category 2 EUR</h3><p>A school can request all the students’ work for a single component of the externally assessed work to be returned in electronic form. Currently only Papers 2 and 3 can be returned not any of the IA samples. This can be useful if you are a new teacher and you wish to see how your students actually performed on certain questions. Examiners are instructed to write useful comments, particularly whenever there is doubt about whether to award a mark or not, and these comments can be helpful to you too.</p><hr class="hidden"><h3>Category 3 EUR</h3><p>Until May 2012 it was not possible to get the IA marks altered unless there were serious grounds for suspecting that the moderation has been unfair. Since then schools may apply for a Category 3 re-moderation on the sample of candidates’ internally assessed work sent for moderation. Details of this can be found in the IB Diploma Programme Assessment Procedures which your IB Co-ordinator will have.</p><p>The re-moderation of the school's work is based on the original sample. For schools where both SL and HL candidates were entered the re-moderation will affect both higher level and standard level candidates for the subject. Note that the grades may be raised due to re-moderation, but will not lowered. A remoderation cannot be requested unless the mean of the candidates’ moderated internal assessment marks are 15% or more different from the mean of the marks awarded by the teacher (their raw marks).</p><p>Re-moderation will not normally be undertaken by the original moderator (this may only happen in subjects which have a small number of candidates - chemistry does not fit into this category). Since the sample work will need to be sent from the original moderator to a second moderator, the time taken to undertake a re-moderation is dependent the availability of examiners.</p><p>The fee for this service is per school sample. The fee will not be refunded on the occasions when one or more grades are raised. 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