power_curve

This is used to see how power changes as a function of
 sample size or MDES. It takes a fit pumpresult and calculates a power
 curve based on that scenario coupled with a passed range of
 values to make the curve over.

Estimates power, minimum detectable effect size (MDES) and sample size requirements. The context is multilevel randomized experiments with multiple outcomes. The estimation takes into account the use of multiple testing procedures. Development of this package was supported by a grant from the Institute of Education Sciences (R305D170030). For a full package description, including a detailed technical appendix, see <doi:10.18637/jss.v108.i06>.

Luke Miratrix

PUMP

Power Under Multiplicity Project

Kristen Hunter

Zarni Htet

Kristin Porter

MDRC 

Institute of Education Sciences 

power_curve function

<dl><dt>x</dt>
<dd>a pumpresult object.</dd>
<dt>all</dt>
<dd>logical; if TRUE, merge in the search path from the
original search.</dd>
<dt>low</dt>
<dd>scalar; low range for curve.</dd>
<dt>high</dt>
<dd>scalar; high range for the curve.</dd>
<dt>grid.size</dt>
<dd>scalar; number of points to calculate power for.</dd>
<dt>tnum</dt>
<dd>scalar; number of iterations to calculate power at each
grid point.</dd></dl>

Arguments

Obtain a power curve for a range of sample size or MDES values — power_curve

<dl>

<dt>x</dt>
<dd>a pumpresult object.</dd>


<dt>all</dt>
<dd>logical; if TRUE, merge in the search path from the
original search.</dd>


<dt>low</dt>
<dd>scalar; low range for curve.</dd>


<dt>high</dt>
<dd>scalar; high range for the curve.</dd>


<dt>grid.size</dt>
<dd>scalar; number of points to calculate power for.</dd>


<dt>tnum</dt>
<dd>scalar; number of iterations to calculate power at each
grid point.</dd>

</dl>

power_curve: Obtain a power curve for a range of sample size or MDES values

Description

Usage

Value

Arguments