Structural Equation Modeling of Mediation and Moderation With Contextual Factors
Researchers often grapple with the idea that an observed relationship may be part of a more complex chain of effects. These complex relationships are de- scribed in terms such as indirect influences, distal vs. proximal causes, interme- diate outcomes, and ultimate causes; all of which share the concept of mediation. Similarly, researchers must often consider that an observed relationship may be part of a more complex, qualified system. These relationships are described using concepts such as interactions, subgroup differences, and shocks; all of which share the concept of moderation. Generally speaking, a mediator can be thought of as the carrier or transporter of information along the causal chain of effects. A moderator, on the other hand, is the changer of a relationship in as ystem. In this chapter, we explore both empirical and theoretical considerations in modeling mediation and moderation using structural equation modeling. Our
Published in 2007.