Theoretical and Methodological Differentiation of Moderation and Mediation

Does The E-Loyalty Increase As The Consumer s Access To The Internet Increases An Empirical Study In Turkey

“…According to the Baron and Kenny, the interaction term can be explained clearly if the moderator variable does not correlate with the independent variable and the dependent variable (Baron andKenny, 1986, p.1174). However the interaction term can be highly correlated with the independent or moderator variable and results in high multicollinearity problem in the analysis process because the interaction term consists of the multiplied by the moderator variable and independent variable (Baron and Kenny, 1986;Wu and Zumbo, 2008;Kraemer et al, 2001;Hayes and Rockwood, 2016;Lindley and Walker, 1993). To overcome the multicollinearity problem, Centering which is used independent variable's and moderator variable's standardised values were applied (Lindley and Walker, 1993, p.277;Wu and Zumbo, 2008, p.381;Kim et al, 2001, 67-68;Hayes, 2013, p.277).…”

Moderating and Mediating Effects in Causal Models

“…A moderator variable may reduce or enhance the direction of the relationship between a predictor variable and a dependent variable, or it may even change the direction of the relationship between the two variables from positive to negative or visa versa (Lindley & Walker, 1993).…”

“…A moderator variable can be considered when the relationship between a predictor variable and a dependent variable is strong, but most often it is considered when there is an unexpectedly weak or inconsistent relationship between a predictor and a dependent variable (Baron & Kenny, 1986;Holmbeck, 1997;Lindley & Walker, 1993). The moderating effect is typically expressed as an interaction between predictor and moderator variable (Aldwin, 1994;Baron & Kenny, 1986;Holmbeck, 1997).…”

“…Conceptual models typically depict causal relationships among several variables for the purpose of explaining when, how, and why human phenomena occur (Lindley & Walker, 1993). The inclusion of several variables to explain mental health phenomena is especially appropriate because rarely is one factor the sole cause of mental health problems such as depression, lack of motivation, or ineffective coping.…”

The relevance of client-healthcare provider communication to the appraisal of illness uncertainty in women with fibromyalgia syndrome.

“…The centering involved subtracting the sample mean of the variable from the variable. This process created a centered variable in deviation score form with a mean of zero for each variable (Lindley & Walker, 1993).…”