Hi Ruru's,
score.items in package psych is very handy for scoring test items. It has the
structure score.items(keys,items).
For instance:
score.items(c(1,1,1),data.frame(a1=rep(1,5),a2=rep(1,5),a3=rep(1,5)))$scores
correctly gives 1 on each case.
But if key <> -1,0,1 the following happens
score.items(c(0.1,0.1,0.1),data.frame(a1=rep(1,5),a2=rep(1,5),a3=rep(1,5)))$scores
gives 10 on each case. It appears that the inverse of key is the relative
weight of that item.
My questions: is this correct? Is this an undocumented feature? Can i trust on
it?
Frans
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
