Zack Feldberg Email & Phone Number

As a seasoned freelance Psychometrician, I've catered to a diverse range of clients offering:- Creation of sophisticated pre-hire evaluations used by Fortune 500 companies.- Assessment validation and item parameter estimation for a K12 academic testing firm.- Development of a tailored customer segmentation screener for a private enterprise.- Leadership of cognitive/IO psychologist in refining constructs for a candidate-employer matching algorithm.- Guidance of item… Show more As a seasoned freelance Psychometrician, I've catered to a diverse range of clients offering:- Creation of sophisticated pre-hire evaluations used by Fortune 500 companies.- Assessment validation and item parameter estimation for a K12 academic testing firm.- Development of a tailored customer segmentation screener for a private enterprise.- Leadership of cognitive/IO psychologist in refining constructs for a candidate-employer matching algorithm.- Guidance of item writing for comprehensive academic, cognitive, personality, and pre-hire assessments.- Piloting of items and validation of measures for operational testing.- Execution of measurement invariance testing and parameter estimation for transitioning static assessments to computer adaptive tests.- Consultation on tailored design and development of assessments for targeted and large scale testing systems.Expertise lies in delivering bespoke psychometric solutions for every client, ensuring satisfaction and success. Show less

Instructor for graduate level courses including Research Methods and Analysis of Variance. Developed curriculum and learning experiences for students. Consulted students on developing and executing their own research projects that they needed to complete their masters and PhD programs. Taught R programing and advanced statistical methodologies.

Athens, Georgia Area

Studied Quantitative Methodology in the Educational Psychology Department. Focused on psychometrics (convergence of psychology and statistics) in the field of education. Developed skills in Machine Learning, Diagnostic Classification Models, Item Response Theory, Computer Adaptive Testing, Hierarchical Linear Modeling, and Structural Equation Modeling. Gained expertise in R programing and proficiency in SPSS, Mplus, SAS, and Python.

Coordinated company response to Covid-19 pandemic. Ensured company met customer needs while ensuring employee safety. Secured financing to keep company financially sound.

Remote

Created a battery of computer adaptive test from a series of item response theory based tests. Conducted Monte Carlo simulation studies in R and Python. Documented the analysis and provided the results concisely for use by engineering team.

Analyzed education policy codes and statutes related to educational assessment and accountability to discover insights for policymakers and educational experts. Presented research findings to national associations for the improvement of education policy.

Atlanta

Doctor Of Philosophy - Phd, Psychometrics And Quantitative Psychology

Master Of Arts In Teaching, Educational Theory And Practice

Bachelor'S Degree, Political Science And Government