
*This checklist also tells you what audio clips link to which sub topics and which areas have their own level 4 quizlets*

Level two
What is the sign test and how do you do it?
Excellent explanation of skewed distributions
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Levels of measurement- the rules for deciding on nominal, ordinal, interval.
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Level three

Level four
Level 5 exam question and mark scheme
Past exam papers (the induction page AND the year 2 research methods page will have other research method exam questions)