ci.2x2.median.mixed

Computes distribution-free confidence intervals for the AB
interaction effect, main effect of A, main efect of B, simple main effects
of A, and simple main effects of B in a 2x2 mixed design where Factor A is
the within-subjects factor and Factor B is the between subjects factor.
Tied scores within each group and within each within-subjects level are
assumed to be rare.

Implements confidence interval and sample size methods that
are especially useful in psychological research. The methods can be
applied in 1-group, 2-group, paired-samples, and multiple-group designs
and to a variety of parameters including means, medians, proportions,
slopes, standardized mean differences, standardized linear contrasts
of means, plus several measures of correlation and association.
Confidence interval and sample size functions are given for single
parameters as well as differences, ratios, and linear contrasts of
parameters. The sample size functions can be used to approximate the
sample size needed to estimate a parameter or function of parameters
with desired confidence interval precision or to perform a variety of
hypothesis tests (directional two-sided, equivalence, superiority,
noninferiority) with desired power. For details see: Statistical Methods
for Psychologists, Volumes 1 – 4, <https://dgbonett.sites.ucsc.edu/>.

Douglas G. Bonett

statpsych

Statistical Methods for Psychologists

Robert J. Calin-Jageman

ci.2x2.median.mixed function

<dl><dt>alpha</dt>
<dd>alpha level for 1-alpha confidence</dd>
<dt>y11</dt>
<dd>vector of scores at level 1 of A and level 1 of B (group 1)</dd>
<dt>y12</dt>
<dd>vector of scores at level 1 of A and level 2 of B (group 2)</dd>
<dt>y21</dt>
<dd>vector of scores at level 2 of A and level 1 of B (group 1)</dd>
<dt>y22</dt>
<dd>vector of scores at level 2 of A and level 2 of B (group 2)</dd></dl>

Arguments

Computes confidence intervals in a 2x2 mixed design for medians — ci.2x2.median.mixed

<dl>

<dt>alpha</dt>
<dd>alpha level for 1-alpha confidence</dd>


<dt>y11</dt>
<dd>vector of scores at level 1 of A and level 1 of B (group 1)</dd>


<dt>y12</dt>
<dd>vector of scores at level 1 of A and level 2 of B (group 2)</dd>


<dt>y21</dt>
<dd>vector of scores at level 2 of A and level 1 of B (group 1)</dd>


<dt>y22</dt>
<dd>vector of scores at level 2 of A and level 2 of B (group 2)</dd>

</dl>

ci.2x2.median.mixed: Computes confidence intervals in a 2x2 mixed design for medians

Description

Usage

Value

Arguments

References

Examples