indt

Compute power for an Independent Samples t-test
Takes means, sds, and sample sizes 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)

indt function

<dl><dt>m1</dt>
<dd>Mean of first group</dd>
<dt>m2</dt>
<dd>Mean of second group</dd>
<dt>s1</dt>
<dd>Standard deviation of first group</dd>
<dt>s2</dt>
<dd>Standard deviation of second group</dd>
<dt>n1</dt>
<dd>Sample size for first group</dd>
<dt>n2</dt>
<dd>Sample size for second group</dd>
<dt>alpha</dt>
<dd>Type I error (default is .05)</dd></dl>

Arguments

Compute power for an Independent Samples t-test
Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user — indt

<dl>

<dt>m1</dt>
<dd>Mean of first group</dd>


<dt>m2</dt>
<dd>Mean of second group</dd>


<dt>s1</dt>
<dd>Standard deviation of first group</dd>


<dt>s2</dt>
<dd>Standard deviation of second group</dd>


<dt>n1</dt>
<dd>Sample size for first group</dd>


<dt>n2</dt>
<dd>Sample size for second group</dd>


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

</dl>

Compute power for an Independent Samples t-test
Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

indt: Compute power for an Independent Samples t-test Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Description

Usage

Value

Arguments

Examples