[R] :psych - score.alpha "superseded" = deprecated/obsolete?

[BbF]

I'm new to R, and have just found that score.alpha gives me noticeably 
different Cronbach's Alpha values than score.items, when using the same 
data frame and (as much as possible) the same options. The help page for 
the former says its "superseded" by the latter. Is this similar to 
saying that score.alpha is deprecated? Should I believe the values given 
by score.items instead?

Darrin L. Rogers
Department of Psychology & Anthropology
University of Texas - Pan American