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BoundariesThese boundaries are based on the mean plus 1.25 standard deviations for past papers. (Year to year boundaries are not normally distributed) Note:+1.25s is 90% confindenceScaling toolUse this tool to generate boundaries for tests that do not follow the IB format Place the total marks for each section into the white boxes below to generate scaled test boundaries
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Biology HLMarks
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76543217654321
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Paper 13530241915110Paper 12320171411960
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4088%75%61%48%37%28%0%
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Paper 25848382820110Paper 239312621151160
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Paper 3383226211580Paper 30000000
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IA20171411740IA (or lab activities)0000000
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2483%71%58%46%29%17%0%
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Overall8167544128170Overall625243352620120
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Biology SLMarks
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76543217654321
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Paper 1272319151280Paper 10000000
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3089%76%63%50%38%27%0%
20
Paper 2393227211580Paper 20000000
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5077%65%54%41%30%16%0%
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Paper 3292521171260Paper 30000000
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3582%70%59%47%34%17%0%
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IA20171411740IA (or lab activities)2420171411740
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2483%71%58%46%29%17%0%
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Overall7866544329160Overall2420171411740
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10078%66%54%43%29%16%0%
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Chemistry HLMarks
30
76543217654321
31
Paper 13632272418110Paper 130272421181380
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4090%79%69%59%44%28%0%
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Paper 27261514131160Paper 251413529231790
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Paper 3342925201580Paper 335262319161260
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4576%64%56%44%33%18%0%
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IA20171411740IA (or lab activities)2420171411740
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2483%71%58%46%29%17%0%
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Overall8068574633180Overall14011498836749270
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10080%68%57%46%33%18%0%
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Chemistry SLMarks
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76543217654321
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Paper 1262320181380Paper 130262320181380
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3087%77%68%59%43%27%0%
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Paper 2393328221680Paper 250393328221680
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5078%66%56%44%32%17%0%
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Paper 3262223151150Paper 3118775320
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3574%63%65%42%30%16%0%
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2483%71%58%46%29%17%0%
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Overall7866564431160Overall1159279705438210
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10078%66%56%44%31%16%0%
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55
Physics HLMarks
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76543217654321
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Paper 12925221915110Paper 130221916141180
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4073%64%55%47%38%28%0%
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Paper 25949403121100Paper 250332722171260
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9066%54%44%34%23%11%0%
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Paper 3332925211370Paper 30000000
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4573%64%55%47%30%16%0%
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IA20171411740IA (or lab activities)0000000
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2483%71%58%46%29%17%0%
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Overall7060504026150Overall805546393123140
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Physics SLMarks
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76543217654321
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Paper 1191714121080Paper 130191714121080
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3063%57%47%40%33%27%0%
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Paper 2332721161150Paper 250332721161150
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IA20171411740IA (or lab activities)0000000
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2483%71%58%46%29%17%0%
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Overall6757463625140Overall805344352820120
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10067%57%46%36%25%14%0%
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