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statpsych

Statistical Methods for Psychologists

v1.9.0 · Jan 12, 2026 · GPL-3

Description

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/>.

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r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
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r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
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r-release-macos-arm64 OK
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Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (1)

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Dependency Network

Dependencies Reverse dependencies mnonr Rdpack mathjaxr esci statpsych

Version History

new 1.9.0 Mar 10, 2026
updated 1.9.0 ← 1.8.0 diff Jan 12, 2026
updated 1.8.0 ← 1.7.0 diff Jun 9, 2025
updated 1.7.0 ← 1.6.0 diff Dec 18, 2024
updated 1.6.0 ← 1.5.0 diff Jul 8, 2024
updated 1.5.0 ← 1.4.0 diff Dec 19, 2023
updated 1.4.0 ← 1.3.0 diff Jun 13, 2023
updated 1.3.0 ← 1.2.0 diff Jan 10, 2023
updated 1.2.0 ← 1.1.0 diff Aug 18, 2022
updated 1.1.0 ← 1.0.0 diff Jun 21, 2022
new 1.0.0 Sep 8, 2021