Criterion C: Critical thinking (maximum mark 12)

Strands

This criterion focuses on four main strands (although the IB puts discussion and evaluation together).

1. Research – appropriate to research question & relevant

2. Analysis – clearly focused & effectively supported

3. Discussion – reasoned argument, well structured & coherent

4. Evaluation  - contains a reflective conclusion supported by evidence

The assessment is based on the extent to which you have used critical-thinking skills to analyse, discuss and evaluate the research you have undertaken.

Specific points covered

Specifically the assessment considers:

1. Are the selection and the application of the research presented both relevant and appropriate to your research question?

2 Are the sources/methods used appropriate in terms of how you have used them in the development of the argument you have presented?

3.  Is your analysis of the research effective and focused on your research question?

4.  Does your discussion of the research develop a clear and coherent reasoned argument in relation to your research question?

5. Have you critically evaluated the arguments you have presented in your essay?

6. Are there any unlikely or unexpected outcomes which also demonstrate critical thinking?

Level 10-12 descriptor

How you have addressed each of the specific points above then determines the mark out of twelve to be awarded. The level descriptors are given on pages 104 and 105 of the Extended Essay Guide. To achieve the highest mark band of 10-12 the assessor must be satisfied that you have properly and competently addressed each of the main strands:

The research is excellent.

i.e. Your research is appropriate to your research question and its application is relevant throughout.

The analysis is excellent.

i.e. Your research is clearly focused on the research question and is analysed effectively. Any less relevant research that
      you have included does not detract significantly from the quality of your overall analysis.
      Your conclusions to individual analysis points are properly supported by the evidence presented.
       

The discussion and evaluation are excellent.

i.e. Your research is supported by a focused and effective reasoned argument with a conclusion that reflects the evidence
        presented.
       The reasoned argument that you have developed is well-structured and coherent. Any minor inconsistencies present
        do not hinder the strength of your overall argument or detract from your final or summative conclusion.
        You have critically evaluated your research.

Excellent use of terminology and concepts

i.e. You have made accurate and consistent use of concepts and terminology relevant to both chemistry and the topic
      which demonstrate effective knowledge and understanding.