Subgroups bootstrap error
Posted: Wed Aug 08, 2018 12:06 pm
Hello everyone,
I'm using SmartPLS 3 for my master's project. Since I collected data in a geographically broad area I ran the PLS and the bootstrap algorithms for the complete dataset (n tot=249) and also for 2 subgroup (n1=179 and n=76); I also checked for heterogeneity by conducting Multigroup Analysis. Until I had in my PLS model 7 variables pointing at the final endogenous variable everthing worked.
However, once I included 1 and/or 2 more variable(s) to my model (one mediator and one moderator), the boostrap report for the smaller subgroup (n=76) gave me NA values for standard deviation and blank values for T and p values.
Do you think the reason is the sample size of this subgroup? According to Hair, Jr et al. (2014) who cited Cohen (1992), n=76 should work for PLS at 1% significance, mininum R^2= 0.5 and 9 arrows pointing at a construct. Does this work also for the bootstrap analsysis?
Thank you!
I'm using SmartPLS 3 for my master's project. Since I collected data in a geographically broad area I ran the PLS and the bootstrap algorithms for the complete dataset (n tot=249) and also for 2 subgroup (n1=179 and n=76); I also checked for heterogeneity by conducting Multigroup Analysis. Until I had in my PLS model 7 variables pointing at the final endogenous variable everthing worked.
However, once I included 1 and/or 2 more variable(s) to my model (one mediator and one moderator), the boostrap report for the smaller subgroup (n=76) gave me NA values for standard deviation and blank values for T and p values.
Do you think the reason is the sample size of this subgroup? According to Hair, Jr et al. (2014) who cited Cohen (1992), n=76 should work for PLS at 1% significance, mininum R^2= 0.5 and 9 arrows pointing at a construct. Does this work also for the bootstrap analsysis?
Thank you!