Sharfras Navas

The choice of SEM model in Amos or SmartPLS depends on the research design, research questions, and hypotheses, as well as the type of variables involved in the study (e.g., continuous, categorical, ordinal).

Amos is commonly used for structural equation modeling (SEM) and can handle both confirmatory and exploratory models. It can also handle models with latent variables, and has a graphical user interface to specify models and inspect results.

SmartPLS is a software specifically designed for partial least squares (PLS) SEM. It is often used for predicting relationships between latent variables and measured variables in both small and large datasets. It can also handle models with formative and reflective constructs.

Both Amos and SmartPLS have their strengths and limitations, and the choice between the two will depend on the specifics of the research study. It is recommended to consult SEM literature and experts to determine the best fit for a particular study.

You have a relatively small sample size of 220 responses from a population of 400, which may influence the reliability and stability of your results. Because SmartPLS is less sensitive to sample size limitations than Amos, it is more suitable for small sample sizes.

I Agreed with "Muhammad Naseer Akhtar" SEM represent structural equation model. you did mentioned AMOS and you also mentioned SMARTPLS. You can perform your analysis using one of the two. AMOS is use along with SPSS software. Whereas, SMART-PLS can be apply on its own.

Amos is used to confirm a theory and smartpls is used to enhance a theory as In your case your smart pls would be better as you are trying to find variance between variables. moreover 220 sample size in amos will make a problem because you will have to clean data normality issue etc. So smart pls is better option