hello,
I am new to R (convert from Stata) and I am wondering if there is an R
command/function for generating a summated scale from, for example, four
separate variables in a data set. In other words, I want to transform the
variables x1, x2, x3, and x4 (which have high inter-item reliability) into
one new summated variable x'. Can't seem to find it in the psy or psych
package ...
Thanks for any suggestions!
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