I'm using lavaan indeed


On Mon, Aug 12, 2013 at 6:21 AM, Jose Iparraguirre <
Jose.Iparraguirre@ageuk.org.uk> wrote:

> Hi Pablo,
>
> Prof John Fox is a frequent contributor to this forum, and no-one is
> better placed than him to respond on your particular point, but I would use
> the sem and the polycor packages. There's an example in the documentation
> of sem which uses polychoric correlations.
> Incidentally you haven't said which packages you'd used -lavaan perhaps?.
> Please do let the forum know which packages you use whenever posting a
> question.
> Regards,
>
> José
>
> Prof. José Iparraguirre
> Chief Economist
> Age UK
>
> Profesor de Economía
> Universidad de Morón
> Morón, Buenos Aires, Argentina
>
>
>
> -----Original Message-----
> From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org]
> On Behalf Of Pablo Menese Camargo
> Sent: 12 August 2013 02:37
> To: R help
> Subject: [R] SEM polychoric
>
> I have this
>
> mcfa<-
> "impulsivity=~imp1r+imp2+imp3+imp4
> physical=~phys1+phys2+phys3+phys4
> risky=~risk1+risk2+risk3+risk4
> selfish=~self1+self2+self3+self4
> simple=~simp1+simp2+simp3+simp4r
> temper=~temp1+temp2+temp3+temp4
> control=~impulsivity+physical+risky+selfish+simple+temper"
>
> where: the model is a second order CFA
> the variables are dichotomic (0-1)
> and I would like to use polychoric
>
> when I have the same items but polytomous i use
>
> fitcfa <- cfa(mcfa, data = data_analisis) summary(fitcfa, standardized =
> TRUE, fit.measure=TRUE) standardizedSolution(fitcfa, type = "std.all")
>
> anyone know what y should do to apply polychoric?
>
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