Conclusion & Evaluation

To make sure you have addressed all the aspects appropriately, self-assess your work using the checklist on your coversheet.

Conclusion and Evaluation are worth equal marks to Design or DCP.

Why then, do students tend to rush this section?

1. Time management. Do not do this the last day before the write-up is due. Get it done early and make sure you run the work through Turnitin before the final submission.

2. “With justification” means you need to refer to sources beyond your textbook to support or help explain your conclusion. Obviously, these sources need to be cited carefully.

3. The conclusion should explain your results, relate them back to your RQ and use supporting scientific theory.

4. Evaluate your results – this is the power of the standard deviation and the error bars on your graph. Were the data collected sufficient and appropriate to address the RQ effectively? If not, how could this be addressed?

5. Follow this up with a table that evaluates specific issues:

  • Limitation or source of error
  • Effect this had on the results, including the magnitude of this effect
  • Specific and achievable method to address this issue.

Your associated qualitative data should help you identify some issues. Others include measurement and instrument error, systematic errors and the effect of random biological variation. Check this resource for more guidance.

Of course, you must always work with the rubric in mind.

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For some more tips on Conclusion and Evaluation, visit these websites:

Evaluating Error, from the IB Biology Teachers Support Material page.

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