help for sbri 

Spearman-Brown reliability

sbri [, obs(#) format(%fmt) ]


sbri calculates the Spearman-Brown reliability. It must be used after xtreg with the mle (maximum-likelihood random-effects estimator) option. It is an immediate command.


obs(#) specifies the number of repeated measurements. The default is e(g_avg).

format(%fmt) specifies the display format for presenting numbers. The default is %3.2f.


use http://www.stata-press.com/data/r9/auto7 loneway mpg manufacturer_grp if nummake == 4 xtreg mpg if nummake == 4 , i(manufacturer_grp) mle sbri


Nicola Orsini, Division of Nutritional Epidemiology, IMM, Karolinska Institutet, Sweden

Also see Manual: [U] 23 Estimation and post-estimation commands, [U] 29 Overview of Stata estimation commands, [XT] xtreg

Online: help for loneway , xtreg