Data Scientist & Survey Expert.

I have completed a Ph.D. and M.Sc. in Survey and Data Science (University of Michigan, USA). I have research articles published in well-reputed impact factor journals. I can perform data analysis using statistical software like R, Stata, SAS, SPSS, Minitab, Jamovi, Jasp, Amos, Mplus, SmartPls, EQS, IRTPRO, and LatentGold.

I can analyze/collect your data using advanced statistical methods:

- regression models (linear and generalized linear models),

- multilevel models,

- longitudinal models,

- machine learning algorithms (Lasso, Random Forest, Boosting, Naive Bayes),

- latent variable models (Structural Equation Modeling, Confirmatory Factor Analysis, Exploratory Factor Analysis, and Latent Class Analysis),

- exploratory multidimensional analysis (Principal Components Analysis, Cluster Analysis, and Multiple Correspondence Analysis, Multidimensional Scaling),

- multiple imputation of missing data,

- psychometric analysis of questionnaires (Item Response Models, Rasch Models, Confirmatory Factor Analysis),

- design/analysis of complex survey sampling (stratified multistage cluster sampling),

- design online questionnaires (SurveyMonkey, Alchemer).