Projects

Contains both a Python notebook and an R script for the same data cleaning and wrangling task to demonstrate the equivalent code structures.

An R package available on CRAN R repository providing a collection of psychometric methods for automated test assembly.

Gurkan, G., Benjamini, Y., Braun, H. (2021). Large-scale Assessment in Education, 9(16).

From OLS to Multilevel Multidimensional Mixture IRT: A Model Refinement Approach to Investigating Patterns of Relationships in PISA 2012 Data.

Demonstrating how to create a heatmap using GeoJSON spatial data. Employing json files via web links is also exemplified.

R script that reads in and preps data files in an automated fashion, conditional on file type (e.g., .zip, .csv, .txt, etc.).

Code developed for practice sessions of a Multivariate Statistics course; topics covered such as logistic regression, principal component analysis, and discriminant analysis.