Chi2x2

Compute power for an Chi Square 2x2
Takes proportions for each group. Alpha is .05 by default, alternative values may be entered by user

Statistical power analysis for designs including t-tests, correlations,
multiple regression, ANOVA, mediation, and logistic regression. Functions accompany
Aberson (2019) <doi:10.4324/9781315171500>.

Chris Aberson

pwr2ppl

Power Analyses for Common Designs (Power to the People)

Chi2x2 function

<dl><dt>r1c1</dt>
<dd>Proportion of overall scores in Row 1, Column 1</dd>
<dt>r1c2</dt>
<dd>Proportion of overall scores in Row 1, Column 2</dd>
<dt>r2c1</dt>
<dd>Proportion of overall scores in Row 2, Column 1</dd>
<dt>r2c2</dt>
<dd>Proportion of overall scores in Row 2, Column 2</dd>
<dt>n</dt>
<dd>Total sample size</dd>
<dt>alpha</dt>
<dd>Type I error (default is .05)</dd></dl>

Arguments

Compute power for an Chi Square 2x2
Takes proportions for each group. Alpha is .05 by default, alternative values may be entered by user — Chi2x2

<dl>

<dt>r1c1</dt>
<dd>Proportion of overall scores in Row 1, Column 1</dd>


<dt>r1c2</dt>
<dd>Proportion of overall scores in Row 1, Column 2</dd>


<dt>r2c1</dt>
<dd>Proportion of overall scores in Row 2, Column 1</dd>


<dt>r2c2</dt>
<dd>Proportion of overall scores in Row 2, Column 2</dd>


<dt>n</dt>
<dd>Total sample size</dd>


<dt>alpha</dt>
<dd>Type I error (default is .05)</dd>

</dl>

Chi2x2: Compute power for an Chi Square 2x2 Takes proportions for each group. Alpha is .05 by default, alternative values may be entered by user

Description

Usage

Value

Arguments

Examples