The rpsychi offers a number of functions for psychiatry, psychiatric nursing, clinical psychology. Functions are primarily for statistical significance testing using published work. For example, you can conduct a factorial analysis of variance (ANOVA), which requires only the mean, standard deviation, and sample size for each cell, rather than the individual data. This package covers fundamental statistical tests such as t-test, chi-square test, analysis of variance, and multiple regression analysis. With some exceptions, you can obtain effect size and its confidence interval. These functions help you to obtain effect size from published work, and then to conduct a priori power analysis or meta-analysis, even if a researcher do not report effect size in a published work.

Changes in version: rpsychi_0.8 (2012-01-03) o lower2R: correction of a bug

Changes in version: rpsychi_0.7 (2011-11-12) o ind.t.test.Rd: change title o ind.t.teset.second.Rd: change title o dep.t.test.Rd: change title o dep.t.test.second.Rd: change title o ind.oneway.Rd: change title o ind.oneway.second.Rd: change title o dep.oneway.Rd: change title o dep.oneway.second.Rd: change title o ind.prop.Rd: change title o ind.prop.second.Rd: change title

Changes in version: rpsychi_0.6 (2011-10-31) o ind.t.teset.second.R: create a specification for estimating unbiased standardized mean difference. o ind.t.teset.R: create a specification for estimating unbiased standardized mean difference.

Changes in version: rpsychi_0.5 (2011-10-29) o ind.prop.R: modify specifications of reference for independent and dependent variable. o ind.prop.second.R: modify specifications of reference for independent variable.

Changes in version: rpsychi_0.4 (2011-09-07) o Corrected fatal errors in version 0.3 relating to aggregate()

Changes in version: rpsychi_0.3 (2011-09-06) o formatted.R, formatted.Rd: add new function for printing output o dep.t.test.R: correction of a bug o dep.oneway.R: correction of a bug o Did not depend the library(doBy)

Changes in version: rpsychi_0.2 (2010-02-09) o dep.t.test.Rd: correction of a bug in the example section o ind.oneway.second.Rd, ind.twoway.second.Rd, rpsychi-package.Rd: update the reference to Cohen B o ind.twoway.R, ind.twoway.Rd: add new function for two-way analysis of variance using individual data

Changes in version: rpsychi_0.1 (2010-02-07) o dep.t.test.R: correction of a bug o ind.twoway.second.R, ind.twoway.second.Rd, power.f2.R, power.f2.Rd: add new function for two-way analysis of variance using published work