René Klerx passed away on December 30th, 2025. Through his advice he helped shape JASP into what it is today, to the benefit of others.
Expertise
Senior Master Black Belt at Klerx Consultancy (since January 2022)
Activities:
- Writing technical documentation for Quality Control topics, such as Statistical Process Control, Process Capability Studies, Measurement Systems Analysis and Design of Experiments.
- Providing training in JASP/QC.
Principal Master Black Belt at the SKF Group (1991 – 2021)
Activities:
- Responsible for the SKF Six Sigma curriculum consisting of MBB, BB, GB, DfSS BB, DfSS GB and Six Sigma Sponsor training.
- Develop, maintain and review SKF Six Sigma training programmes and materials.
- Minitab and JASP/QC expert.
- Develop new statistical software (JASP/QC) to replace Minitab.
- Wrote many case studies for the JASP Data Library.
Member of the ISO/TC 69
- International Organization for Standardization – Technical Committee 69 “Applications of statistical methods”, involved in statistical standards, such as standards for control charts, capability and performance, measurement systems evaluation, design of experiments, tools and techniques for Six Sigma, robust design.
Education
- Eindhoven University of Technology – Master degree in Mathematics, Statistics
Training
- “JASP/QC transition training”, covering SPC, process capability, MSA, DOE methods (one day at location).
- “Extended JASP transition training”, covering Quality Control with additional topics as requested (two days at location).
- “Statistical Process Control and Process Capability Studies with JASP” (two days at location).
- “Measurement Systems Analysis with JASP”, covering MSA for variables (with bias, linearity and stability studies), MSA for attributes, Repeated measurements studies (two days at location).
- “Design of Experiments with JASP”
- “Weibull life data analysis with JASP” (Four online sessions of two hours each).