Przemysław Marcowski

Applied Scientist

I use data to find answers, solve problems, and make things more interesting.

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Projects

Discrete Choice Experiments with Shiny

Flexible system for building discrete choice experiments (DCE) using R Shiny, with tools for efficient design generation, online and offline deployment, data collection, and cloud storage.

Design Experiment Platform

Code Demo

Predicting Behavior in Economic Choice

Research framework analyzing effort-based economic decisions, implementing computational models to evaluate how effort influences outcome valuation.

Choice Models Behavior

Code Demo

Multimodal Emotion Recognition

Detects emotion from face, voice, and text in video, producing synchronized, time-aligned tracks across modalities.

Emotion Multimodal AI

Demo

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Skills

Data Science Machine Learning Quantitative Methods Decision Science Applied Statistics (Descriptive & Inferential) Predictive Modeling Computational Modeling Causal Inference Experimental Design Model Evaluation Time Series Dashboards End-to-End Data Pipelines (ETL/ELT) Python R SQL Spark BigQuery Docker Git

Professional Experience

Recent Publication

Effort can have positive, negative, and nonmonotonic impacts on outcome value in economic choice

Marcowski, P., Białaszek, W., & Winkielman, P.

Journal of Experimental Psychology: General (2025)

This paper investigates effort's influence on outcome valuation in economic decisions, comparing prospective and retrospective scenarios. Effort can diminish or enhance value depending on context and individual, often displaying nonmonotonic patterns. To account for these patterns, a novel decision model explains and predicts these effects via the interplay of perceived effort costs and benefits.

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