PLS - Graph User's Guide Version 3.0

by Wynne W. Chin.

PLS-Graph represents an attempt to make latent variable path modeling using the Partial Least Squares (PLS) approach accessible and convenient to all interested parties. The utility of the PLS method has been documented elsewhere (Chin, 1998; Chin & Newsted, 1999; Falk and Miller, 1992) as possibly more appropriate for a large percentage of the studies and data sets typically used among researchers. As opposed to covariance-based approaches (exemplified by software such as LISREL or EQS), PLS places much less restrictions on matters such as sample size and data distributions. While the most widely available program developed by Lohmoller (1984) has a great deal of functionality and is available at zeasonable cost, its ease of use can be extremely daunting to the initial user. In order to increase the usablility and accessibility of the PLS approach, PLS-Graph was developed as a self contained Graphical User Interface (GUI) based software which creates input decks compatible with the existing PLSX program developed by Lohmoller. PLS-Graph allows the user to focus more on the appropriateness of the model and data set rather than on how to get the program to run. Our experiences have shown that using PLS-Graph has decreased the time to complete a PLS analysis over ten-fold compared to other existing programs. [via]

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