Negative Items

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juliosolano
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Joined: Wed Jan 20, 2016 10:41 pm
Real name and title: Julio Solano

Negative Items

Post by juliosolano » Tue Feb 02, 2016 7:44 pm

Estimados.

Tengo un modelo UTAUT que estoy evaluando con algunos factores (constructos). En algunos items asociados a factores sale la carga factoria negativa. Para tener un buen resultado tengo que invertir el items ( es decir, 5 se cambioa a 1, 4 se cambia a 2, 3 no se cambia, 2 se cambia a 4 y 1 se cambia a 5) o smartPLS lo hace automáticamente ?

Saludos

Julio
_______________________
Dear.

    I have a UTAUT model I'm evaluating some factors (constructs). In some associated items the value iof factor load is negative. To have a good result I have to invest the items (ie 5 is changed 1, 4 is changed to 2, 3 is not changed, 2 is changed to 4 and 1 is changed to 5) or SmartPLS do it automatically?
(like AC1, AE1 in the model attachement)

Cheers

July
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jmbecker
SmartPLS Developer
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Real name and title: Dr. Jan-Michael Becker

Re: Negative Items

Post by jmbecker » Thu Feb 04, 2016 12:43 pm

To some degree PLS recognises the fact that items are on a reversed scale and gives them a negative weight. However, this can cause instabilities during the algorithm and I would advise the invert the item if you know that it is a reverse-coded item. It will give you more robust results.
However, you should have a content specific explanaition for the inversion and not only do it because of your data results.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de

juliosolano
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Joined: Wed Jan 20, 2016 10:41 pm
Real name and title: Julio Solano

Re: Negative Items

Post by juliosolano » Thu Feb 04, 2016 2:02 pm

Thank you very much for your help.

Julio

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Hengkov
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Re: Negative Items

Post by Hengkov » Sat Feb 06, 2016 1:32 am


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