Chapter 24 Cohen’s d: accuracy

24.1 Intro

Study planning includes deciding how large a sample will be collected. This decision is often informed by the required power or the required accuracy. This chapter shows how to compute both.

24.1.1 Example dataset

These sample size computations do not require data.

24.1.2 Variable(s)

These sample size computations do not require variables.

24.2 Input: jamovi

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Figure 24.1: A screenshot placeholder

24.3 Input: R

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Figure 24.2: A screenshot placeholder

24.4 Input: SPSS

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Figure 24.3: A screenshot placeholder

24.5 Output: jamovi

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Figure 24.4: A screenshot placeholder

24.6 Output: R

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Figure 24.5: A screenshot placeholder

24.7 Output: SPSS

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Figure 24.6: A screenshot placeholder