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Statistical Analysis of Data

Statistical Analysis of Data. www.psychlotron.org.uk. Choice & justification of statistical test Calculation & interpretation of results. Statistical Analysis. www.psychlotron.org.uk. Statistical Analysis. www.psychlotron.org.uk. Statistical Analysis. www.psychlotron.org.uk.

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Statistical Analysis of Data

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  1. Statistical Analysis of Data www.psychlotron.org.uk • Choice & justification of statistical test • Calculation & interpretation of results

  2. Statistical Analysis www.psychlotron.org.uk

  3. Statistical Analysis www.psychlotron.org.uk

  4. Statistical Analysis www.psychlotron.org.uk • Small relationships are detectable between any data sets • They may be caused by chance • They may be caused by something else • Statistical tests help us decide, for any given sets of data, which of these possibilities is more likely

  5. Statistical Analysis www.psychlotron.org.uk • If we find that it is highly probable that the relationship was caused by chance, then we assume it was caused by chance • i.e. we accept the null hypothesis • If we find that it is highly improbable that the relationship was caused by chance, then we assume it was caused by something else • i.e. we reject the null hypothesis

  6. Statistical Analysis www.psychlotron.org.uk

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