ci.fisher

Computes a Fisher confidence interval for any type of correlation (e.g.,
Pearson, Spearman, Kendall-tau, tetrachoric, phi, partial, semipartial,
etc.) or ordinal association such as gamma, Somers' d, or tau-b. The
correlation could also be between two latent factors obtained
from a SEM analysis (the Fisher CI will be more accurate than the
large-sample CI from a SEM analysis). The standard error can be a
traditional standard error, a bootstrap standard error, or a robust
standard error from a SEM analysis.

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.fisher function

<dl><dt>alpha</dt>
<dd>alpha value for 1-alpha confidence</dd>
<dt>cor</dt>
<dd>estimated correlation or association coefficient</dd>
<dt>se</dt>
<dd>standard error of correlation or association coefficient</dd></dl>

Arguments

Fisher confidence interval — ci.fisher

<dl>

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


<dt>cor</dt>
<dd>estimated correlation or association coefficient</dd>


<dt>se</dt>
<dd>standard error of correlation or association coefficient</dd>

</dl>

ci.fisher: Fisher confidence interval

Description

Usage

Value

Arguments

Examples