Respected Researchers
i have panel data of 1252 firm years observations with 182 firms and time period is 2010-2016. i have 14 independent variables including 3 control variables, 1 mediator and 1 dependent variable. i want to use STATA for testing direct and mediation models. i have 11 direct hypotheses from independent variables to dependent variables and 11 mediation hypotheses.
Data: Unbalanced panel
QUESTIONS:
1) which test should be implemented other than the selection between fixed and random effect?
2) how mediation analysis can be performed?
Although I am using SPSS for testing mediation, but the process is the same. hope other colleagues will gudie you through STATA.
In SPSS, the attached articled show how to test mediation and moderation.
The 'MEDIATION' package written by Hicks & Tingley may be more up-to-date than 'medeff'. Type "findit mediation" or search for it under the help or use the link below.
http://fmwww.bc.edu/RePEc/bocode/m
You can use the SEM and MEDSEM command in Stata to run for mediation. It is based on Baron and Kenny’s (1986) approach modified by Iacobucci et al. (2007).
Please follow the process as follows:
ssc install sem
sem (M
I run the mediation command and here are the results, so how can I interpret them? please Mohammad Hassan Shakil
Baron and Kenny approach to testing mediation
STEP 1 - size:revgrw1 (X -> M) with B=0.122 and p=0.053
STEP 2 - roaw:size (M -> Y) with B=0.014 and p=0.000
As either STEP 1 or STEP 2 (or both) are not significant,
there is no mediation!
here is the mediation model : size is the mediating var , ROA is dependent var and Growth is independent var
ROA = α+β1size +β2 Growth+ β3Growth*Size+ εi
please Dr, Mohammad Shakil, can you send me the interpretation to my inbox
best regards,
- Badges
- Science method
- Similar topics
- Mathematics
- Statistics
- Statistical Techniques
- Structural Equation Modeling