How are IB internal exams graded?

[Jay94]

How are IB internal exams graded? I know that it is 20% of your diploma grade, but what do you mean diploma grade?

Is it 20% of your entire senior and junior grade or is it 20% of your IB exam grade?

Can someone tell me?

[Guest]

If you are asking about the breakdown of the scores, here's the link http://ibmom.wordpress.com/ib-scoring-breakdown/

And what do you mean included in the diploma? IB marks are separate from your school and diploma marks.

[iber2011]

I think (correct me if i'm wrong) that it's based on your luck. Like at examiner can randomly select your IA and grade you otherwise whatever grade you get from your teacher would be counted. That's what my teachers are saying

[dessskris]

The overall IB diploma grade is only affected by your Internal Assessment grade and the external IB exam grade. Each subject grade has its own components, but in general it's IA and IB exam.

Mathematics IB Diploma Grade Components

Mathematics HL

• 30% from Paper 1 Exam
  
• 30% from Paper 2 Exam
  
• 20% from Paper 3 Exam
  
• 20% from Portfolio (IA)

Mathematics SL

• 40% from Paper 1 Exam
  
• 40% from Paper 2 Exam
  
• 20% from Portfolio (IA)

Mathematical Studies SL

• 40% from Paper 1 Exam
  
• 40% from Paper 2 Exam
  
• 20% from Project (IA)

Please note that each exam paper grade solely comes from the exam paper and the IA grade solely comes from the two portfolios that you produced. So if you get 80% in your Paper 1 exam, that is what you get for that paper, no matter how much you score in your IA or other papers. The overall grade for your Math subject does depend on each exam paper's grade and your IA.

Regarding what iber2011, I believe it's about the IA moderation. Say your teacher at school has graded your IAs. If there are many students in your class, your teacher will choose some students' IAs to send to the IBO for external moderation. As explained in this thread:

If there are <=5 students in your class, all IAs will be sent for external moderation.

If there are 6-20 students in your class, 5 IAs will be sent for external moderation.

If there are 21-40 students in your class, 8 IAs will be sent for external moderation.

If there are >=41 students in your class, 10 IAs will be sent for external moderation.

Your teacher may randomly select your IA or whatever, it depends on your teacher -- sort of depends on your luck too, and send them to the IBO for moderation. The IB examiner will then grade your IA regardless of the grade that your teacher gave you. If the grade seems okay, the examiner will just agree with and leave it. If your teacher is too strict in marking, the examiner may increase your grade. If your teacher is too lenient, the examiner may also lower your grade. If your IA is not sent for external moderation, whatever grade your teacher gave you will be counted as your IA grade.

[Ezeh]

What everyone has said above about IB moderation is incorrect.

Yes, a random sample of your class/grades IA's are sent to to IBO for external moderation.

However,

If the IBO deems your teacher's marking as too lenient, they will bring down everyone's grade.

This applies to if it was under marked, everyone's grade will be brought up.

A random sample is selected, however they select the top few, bottom few, middle few, etc; in order to gain a range of data.

If your IA is not sent away, it can still get brought down.

I remember when i first started at my school (a new IB school), the current final year student's were brought down dramatically. Our teachers weren't used to marking IB, and they're english assessment grades were brought down by about 40% or so.

Because of the sample that our school sent to the IB, they saw our teachers' marking too soft (high). Therefore they brought everyone's result down, which meant people who were predicted 7's got 5's, and stuff like that

They're much more accurate now thank god