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Understanding The New Statistics by Geoff Cumming

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Commentary on Selected Exercises

Chapter 1 Exercises Introduction to ESCI,and Comparing Presentation Formats

1.4–1.7 If you enter at red 1 and 3 the values shown in the first Lucky–Noluck presentation, in NHST format, you should see the three versions of the results and close matches with Figures 1.1 and 1.2. Compare with Figure 1.4. Note that the df values in the first presentation indicate that Lucky used two groups with N = 22, and Noluck two with N = 18.

1.8 and 1.9 Increase M(diff), decrease SD(diff), or increase N: In each case see p decrease. Each of those changes, with everything else held constant, suggests stronger evidence of an ...

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