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Two Approaches (Rungtusanatham et al., 2014)
Two Approaches (Rungtusanatham et al., 2014)
Segmentation Approach
Segmentation Approach
Segmentation Approach for Theorizing Mediation Effect
Segmentation Approach for Theorizing Mediation Effect
Three hypotheses to be tested:
Three hypotheses to be tested:
H1: There is a positive effect of X on M
H2: There is a positive effect of M on Y
H3: M positively mediates the effect of X on Y
or
H3: X has a positive indirect effect on Y through M
Transmittal Approach
Transmittal Approach
Transmittal Approach for Theorizing Mediation Effect
Transmittal Approach for Theorizing Mediation Effect
In this approach, there is only one hypothesis to be tested:
H1: M positively mediates the effect of X on Y, or
H1: X has an indirect positive effect on Y through M
Some Considerations
Some Considerations
Theoretical consideration-whether the underpinning theory suggests testing the relationship between X and Y.
Analytical approach. Example: Baron & Kenny's (1986) approach or Preacher & Hayes (2004,2008), which focuses on indirect effect.
Problem statement. Example: if the researcher argues X affect Y because of M, or if the researcher argues the established relationship between X and Y and he/she is interested to whether M mediates the effect or not.
Reporting the Mediating Effects
Reporting the Mediating Effects
Example:
The bootstrapping analysis showed that the indirect effect β = 0.159 (0.546*0.291) was significant with a t-value of 3.682. Also as indicated by Preacher and Hayes (2008), the indirect effect 0.159, 95% Bootstrap Confidence Interval [LL = 0.074, UL = 0.243] does not straddle a 0 in between indicating there is mediation.
Thus, we can conclude that the mediation effect is statistically significant.
Exercises
Exercises
Exercise 1: Single Mediation
Exercise 1: Single Mediation
Download the project HERE.
Exercise 2: MULTIPLE Mediation
Exercise 2: MULTIPLE Mediation
Download the project HERE.
CL: Creative Leadership; CSE: Creative Self-Efficacy; KS: Knowledge Sharing; CPI: Creative Person Identity
Exercise 3: Multiple Mediation
Exercise 3: Multiple Mediation
Download a data-set here, and draw the following model.
Exercise 4: Multiple Mediation
Exercise 4: Multiple Mediation
Download a data-set here, and draw the following model.
USRST: University Social Responsibility for Student; USRST: University Social Responsibility for Society; EA: Environmental Attitude; SUI: Student-University Identification; OCBE: Organizational Citizenship Behavior for the Environment
Exercise 5: Serial Mediation
Exercise 5: Serial Mediation
Download a data-set here, and draw the following model.
Exercise 6: endogeneous second order mediation
Exercise 6: endogeneous second order mediation
In this exercise, the mediating variable is second order type 2 (i.e., reflective-formative).
Download a data-set here, draw the following model, and assess measurement and structural model.
Further Readings
Further Readings
Aguinis, H., Edwards, J. R., & Bradley, K. J. (2017). Improving our understanding of moderation and mediation in strategic management research. Organizational Research Methods, 20(4), 665-685.
Ghazali, E. M., Mutum, D. S., & Woon, M. Y. (2019). Multiple sequential mediation in an extended uses and gratifications model of augmented reality game Pokémon Go. Internet Research.
Marengo, D., Poletti, I., & Settanni, M. (2020). The interplay between neuroticism, extraversion, and social media addiction in young adult Facebook users: Testing the mediating role of online activity using objective data. Addictive behaviors, 102, 106150.
Rungtusanatham, M., Miller, J. W., & Boyer, K. K. (2014). Theorizing, testing, and concluding for mediation in SCM research: tutorial and procedural recommendations. Journal of Operations Management, 32(3), 99-113.
Trivedi, Shrawan Kumar, and Mohit Yadav. "Repurchase intentions in Y generation: mediation of trust and e-satisfaction." Marketing Intelligence & Planning (2020).
van Strien, T., Konttinen, H. M., Ouwens, M. A., van de Laar, F. A., & Winkens, L. H. (2020). Mediation of emotional and external eating between dieting and food intake or BMI gain in women. Appetite, 145, 104493.
Reference Video
Reference Video
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