[R-meta] Significantly group difference, overlapping confidence intervals

[Guido Schwarzer]

Dear Kyungnam Jeon,

Overlapping confidence intervals for two subgroups does not mean that 
there is no significant p-value for the subgroup difference. See, for 
example, 
http://blog.minitab.com/blog/real-world-quality-improvement/common-statistical-mistakes-you-should-avoid 
.

Best wishes,
Guido

-- 
Dr. Guido Schwarzer
Institute of Medical Biometry and Statistics,
Faculty of Medicine and Medical Center - University of Freiburg

Postal address: Stefan-Meier-Str. 26, D-79104 Freiburg

Phone: +49/761/203-6668
Mail: sc at imbi.uni-freiburg.de
Homepage: http://www.imbi.uni-freiburg.de