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Published byMyra Hill Modified over 8 years ago
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Week 8: Exploring a new dataset and Chi-square.
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Means, SDs and z-scores problem sheet. Deadline for coursework.
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Looking at data from maths education questionnaire (week 2). Hypotheses. Levels of measurement. Chi-Square problem sheet.
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Maths questionnaire (week 2). Open data on Graham’s website “maths questionnaire SPSS data” Which variables are categorical and which are continuous?
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Can be either: Continuous Hypothesis: ◦ Should be tested with 2 continuous questions ◦ e.g. “relationship between secondary school teacher kindness and maths anxiety ” Categorical Hypothesis: - ◦ Should be tested with 2 categorical questions ◦ e.g. “association between gender and studying Psychology at A-level”
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Continuous Hypothesis: ◦ Inferential statistics: regression (week 9) correlation (week 10). Categorical Hypothesis: - ◦ Inferential statistics: Chi-Square test of association (today).
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Find past research whilst choosing hypothesis. Hypothesis should be theoretically motivated. Think about what analysis you want to do.
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Nominal “Name” E.g. Gender Ratio “Real zero” E.g. Height Interval “Imaginary zero” E.g. Temperature Ordinal “Order” E.g. Horse racing
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WHAT TEST TO USE? THE FLOW CHART
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Come up with a hypothesis by next week. Next Week: lab report refresher and regression.
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