A Step-by-Step Approach to Using SAS for Factor Analysis and by Larry Hatcher, Norm O'Rourke

By Larry Hatcher, Norm O'Rourke

This easy-to-understand advisor makes SEM obtainable to all clients. This moment version comprises new fabric on sample-size estimation for course research and structural equation modeling. in one uncomplicated quantity, scholars and researchers will locate the entire info they want to be able to grasp SAS fundamentals earlier than relocating directly to issue research, direction research, and different complex statistical methods.

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Additional info for A Step-by-Step Approach to Using SAS for Factor Analysis and Structural Equation Modeling (2nd Edition)

Example text

This dataset (D2) is the name of the output dataset created on line ❶ the PROC FACTOR statement. The PROC CORR statement requests that the factor score variables (FACTOR1 and FACTOR2) be correlated with participants’ responses to questionnaire items 1 to 6 (V1 to V6). The preceding program produces five pages of output. Pages 1 to 2 provide simple statistics, the eigenvalue table, and the unrotated factor pattern. Page 3 provides the rotated factor pattern and final communality estimates (same as before).

Because this chapter is intended as an introduction to the topic, this text will not provide a comprehensive discussion of all of the options available at each step; instead, specific recommendations will be made, consistent with common practice in applied research. For a more detailed treatment of principal component analysis and factor analysis, see Stevens (2002). Step 1: Initial Extraction of the Components In principal component analysis, the number of components extracted is equal to the number of variables being analyzed.

28 A Step-by-Step Approach to Using SAS for Factor Analysis and Structural Equation Modeling, Second Edition Computing Factor-Based Scores A second (and less sophisticated) approach to scoring involves the creation of new variables that contain factorbased scores rather than true factor scores. A variable that contains factor-based scores is sometimes referred to as a factor-based scale. Although factor-based scores can be created in a number of ways, the following method has the advantage of being relatively straightforward: 1.

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