Marcel Wiechmann

Marcel is a Data School Consultant with extensive expertise in statistical analysis, research design, and practical data analytics. A Ph.D. in Psychology and over eight years of experience in academic research and consulting inform his unique approach—delivering actionable insights grounded in analytical rigor and clarity.

He excels at making complex analytical concepts accessible to diverse stakeholders. At The Data School, Marcel combines sophisticated statistical methods, insightful data storytelling, and user-focused dashboard design to help clients transform data into meaningful business decisions.

Technical Skills

  • Data Visualisation & Reporting: Tableau, Power BI

  • Data Preparation & Automation: Alteryx, Tableau Prep, SQL

  • Statistical Analysis & Methods: regression analysis, factor analysis, structural equation modelling (SEM), multilevel modelling, latent class analysis, survey analytics

  • Statistical Software: SPSS, MPlus

  • Programming (basic proficiency): Python, R

Key Competencies

  • Dashboard Design & Data Storytelling

  • Clear Communication of Complex Concepts

  • Requirements Gathering & User Story Development

  • Advanced Statistical Analysis & Research Methodology

  • Workshop Facilitation & Statistical Training

Short-Term Projects

HR Analytics (Food & Retail Industry)

  • Developed HR dashboard evaluating recruitment channels and hiring process efficiencies, enabling strategic improvements in talent acquisition.

Market Basket Analytics (E-Commerce Industry)

  • Led team as project manager, designing interactive dashboards to visualize product co-occurrence patterns, facilitating targeted product recommendations and marketing strategies.

Complaint Management Analytics (Financial Services Industry)

  • Redesigned dashboards for tracking customer complaints, introducing interactive filtering and branch-specific analytics to better identify customer service opportunities.

Digital Marketing Performance Analytics

  • Created Tableau dashboards to allow detailed comparison of marketing performance over different periods, enabling granular marketing insights.

Sales & Campaign Analytics

  • Developed interactive dashboards to visualize campaign comparisons and lead performance across marketing channels, improving sales and marketing decisions.

Before Data School

  • Completed Ph.D. in Political Psychology (extensive quantitative research and statistical analysis)

  • Delivered workshops and training courses in advanced statistical analysis and research methodology

  • Conducted statistical consulting projects for academic and business clients—e.g., clustering analysis, market segmentation, survey analytics, and process optimisation

Certifications

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