Re: [R] Retrieve "raw scores" in factor analysis

2011-01-18 Thread Roni Kobrosly
In case anyone is interested in this issue, I found a solution. The "psych" package has a function named "score.items" which will calculate raw scores. You need to know the survey item loadings and the raw responses to each item, but it will do it. See Grice's 2001 paper on factor scores for more i

[R] Retrieve "raw scores" in factor analysis

2011-01-17 Thread Roni Kobrosly
I'm working with a data collected through complex survey design. My goal is to conduct a factor analysis to extract two a priori, known factors, and to get factor scores for these factors. Unfortunately, the "svyfactanal" procedure from the Survey package does not allow for the calculation of ei