Explain what is meant by the term 'order effects'.

Mark scheme

Marking points from the official mark scheme (May/June 2019). The mark or mark type is shown in brackets.

1. order effects are the consequence on results of performing two similar tasks such that performance on one affects performance on the other;
2. practice effects are when performance on the first task improves performance on the second;
3. e.g. remembering how to do it / what your answers were;
4. e.g. getting more skilled at a physical task;
5. e.g. learning the process required to score well;
6. fatigue effects are when performance on the first task impairs performance on the second;
7. e.g. getting bored;
8. e.g. getting tired;
9. Because although it was repeated measures;
10. the order of (trials for) the levels of the IV were randomized;
11. so no one level of the IV would have been towards the 'end';