I know that -iclassr-, -iclassr2-, -l1way- (all included in package sg65 from http://www.stata.com/stb/stb35 ) use Spearman-Brown formula, but I am not sure if this information helps you.
Nicola
P.S. I judge it simply a matter of taste (even if it is not), but I am a fan of -factor, pcf- (that produces almost the same results as the default SPSS command for factor analysis). Varimax rotation is the most used in my research area (innovation management).
At 02.33 24/02/2007 -0500, Vanessa Mahlberg wrote:
>Hi,
>
>I´m a German student doing her diploma thesis in Human Resources
>Management. I´ve got 2 questions.
>1. I would like to do a reliability analysis with Spearman Brown. (I
>have already calculated Cronbach´s Alpha). I only found the command
>"Spearman´s rank correlation".
>Can anybody please help me to get the reliability coeffizient
>(Spearman_Brown)
>2. How can I use a factor analysis with stata.I dont´t know the command.
>
>It would be very kind if anybody could help me.
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