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Designing marking schemes

Whether you are marking exam answers or students' assignments (for example posters, presentations and practical work), the time spent making a good marking scheme can save you hours when it comes to marking a pile of scripts. It can also help you to know (and show) that you are doing everything possible to be uniformly fair to all students. As you may be required to show your model answers on some programmes to people including external examiners and quality reviewers, it's important to design schemes in the first place so that they will stand up to such scrutiny.

The following suggestions should help:

  1. write a model answer for each question, if the subject matter permits. This can be a useful first step towards identifying the mark-bearing ingredients of a good answer. It also helps you see when what you thought was going to be a 30-minute question turns out to take an hour! If you have difficulties answering the questions, the chances are that your students will too! Making model answers and marking schemes for coursework assignments can give you good practice for writing exam schemes.
  2. make each decision as straightforward as possible. Try to allocate each mark so that it is associated with something that is either present or absent, or right or wrong, in students' answers.
  3. aim to make your marking scheme usable by a non-expert in the subject. This can help your marking schemes be useful resources for students themselves, perhaps in next year's programme.
  4. aim to make it so that anyone can mark given answers, and agree on the scores within a mark or two. It is best to involve colleagues in your piloting of first-draft marking schemes. They will soon help you to identify areas where the marking criteria may need clarifying or tightening up.
  5. allow for 'consequential' marks. For example, when a candidate makes an early mistake, but then proceeds correctly thereafter (especially in problems and calculations), allow for some marks to be given for the ensuing correct steps even when the final answer is quite wrong.
  6. pilot your marking scheme by showing it to others. It's worth even showing marking schemes to people who are not closely associated with your subject area. If they can't see exactly what you're looking for, it may be that the scheme is not yet sufficiently self-explanatory. Extra detail you add at this stage may help you to clarify your own thinking, and will certainly assist fellow markers.
  7. look at what others have done in the past. If it's your first time writing a marking scheme, looking at other people's ways of doing them will help you to focus your efforts. The UCPPD/Postgraduate Certificate in Learning and Teaching in HE team can refer you to references on assessment which can offer guidance and examples.
  8. learn from your own mistakes. No marking scheme is perfect. When you start applying it to a pile of scripts, you will soon start adjusting it. Keep a note of any difficulties you experience in adhering to your scheme, and take account of these next time you have to make one.