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rmass2

Repeated Measures with Attrition: Sample Sizes and Power Levels for 2 Groups

v0.0.0.2 · Sep 19, 2023 · GPL-2 | GPL-3

Description

For the calculation of sample size or power in a two-group repeated measures design, accounting for attrition and accommodating a variety of correlation structures for the repeated measures; details of the method can be found in the scientific paper: Donald Hedeker, Robert D. Gibbons, Christine Waternaux (1999) <doi:10.3102/10769986024001070>.

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Check History

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

Version History

new 0.0.0.2 Mar 10, 2026
updated 0.0.0.2 ← 0.0.0.1 diff Sep 19, 2023
new 0.0.0.1 Aug 20, 2023