Free 45-minute webinar with Stef De Reys, PhD
FREE EDUCATIONAL WEBINAR
26 January 2027, 13:00 - 13:45 PM CET (*)
Your team has just launched an important marketing campaign and sees ‘a higher response rate’. A competitor presented a "statistically significant" benefit at the latest congress. Sales results differ between territories. A clinical trial reports a statistically significant benefit.
Immediately we start asking questions and... take action?
How do you decide whether these differences are meaningful enough to act on?
Across Sales, Marketing and Medical Affairs, interpreting data is part of everyday decision-making. Yet, a statistically significant difference may be too small to matter in practice. Equally, a result labelled “not statistically significant” can lead you to dismiss an opportunity too soon.
Join CELforPharma faculty member Stef De Reys for a practical introduction to the statistical thinking behind better decisions. Drawing on examples from commercial activities and clinical research, he will show you which questions to ask before turning a finding into an action or a claim.
In this webinar, you will explore:
What a p-value really tells you: Why p < 0.05 alone is insufficient to justify a decision, and why p > 0.05 does not prove there is no effect.
Whether a difference matters: How effect size helps you assess the practical importance of a result.
How much confidence to place in the findings: What sample size and confidence intervals reveal about uncertainty.
Common traps in interpreting data: How misleading comparisons and graphs can influence your conclusions.
Designed for professionals in Sales, Marketing and Medical Affairs, this session takes an accessible approach, with practical examples. No worries though: the fancy mathematical formulas will not be part of this webinar.
You will leave with a simple set of decision-making tools to help you assess evidence more critically and make better-informed recommendations.
About the expert:
Stef De Reys, PhD, expert trainer of Practical Statistics Course for Medical Affairs: Interpretation & Application, is a medical statistics expert with over 30 years of experience applying biostatistics across research, Medical Affairs, and commercial functions.
As an independent consultant, Stef helps biotech and life science companies use data to optimise processes and make evidence-based strategic decisions.
He has held global Medical Affairs positions for international companies, where he used data and analytics to improve Medical Affairs operations, from evidence-generation planning to field medical strategy and performance measurement.
Stef is known for his ability to translate complex statistical outcomes into simple, clinically meaningful messages, making data feel less abstract and more directly applicable to daily practice and long-term strategy.
(*) If you cannot attend the webinar, please note that a recorded playback will be sent to all registrants after the webinar.