

The Effective Statistician - in association with PSI
Alexander Schacht and Benjamin Piske, biometricians, statisticians and leaders in the pharma industry
The podcast from statisticians for statisticians to have a bigger impact at work. This podcast is set up in association with PSI - Promoting Statistical Insight. This podcast helps you to grow your leadership skills, learn about ongoing discussions in the scientific community, build you knowledge about the health sector and be more efficient at work. This podcast helps statisticians at all levels with and without management experience. It is targeted towards the health, but lots of topics will be important for the wider data scientists community.
Episodes
Mentioned books

Dec 1, 2025 • 36min
Why to present better and how as a statistician
A conversation with Kaspar Rufibach
Why You Should Listen:
✔ By the end of this episode, you’ll:
✔ Pick up concrete steps to improve your presentation skills over time: feedback, recordings, formal training, and deliberate practice.
✔ See why communication is leadership – and why “you can’t lead if you can’t communicate” really applies to statisticians.
✔ Learn how to start a presentation: from a blank sheet to a clear set of 2–4 key messages your audience will actually remember.
✔ Rethink slide design so your slides support you—instead of becoming an information dump that competes with your voice.
✔ Understand the crucial difference between academic talks (“what I did”) and business presentations (“what we should do now and why”).
Get practical ideas to prepare earlier, present shorter, and focus on what your audience truly needs to hear.
Episode highlights with timestamps
[00:02:00] Why presentations matter more than you thinkKaspar shares why statisticians can’t “hide behind the numbers” if they want real impact.
[00:03:00] How Kaspar actually starts a talkFrom a blank sheet of paper to a small set of key messages.
[00:07:45] The problem with crowded slidesWhy most slide decks try to do the wrong job—and what Kaspar does instead.
[00:14:00] Presentations, reputation, and wasted timeHow the way you present shapes your personal brand with colleagues and leaders.
[00:18:00] When leaders don’t care about your methodsThe shift from “here’s what I did” to “here’s what we should do.”
[00:20:45] Starting with your conclusionHow leading with recommendations can save you when your time is suddenly cut.
[00:23:30] Simple habits to become a better presenterSmall changes Kaspar says you can start using in your next talk.
[00:29:00] Dealing with fear and staying authenticWhy there are no “natural born presenters” and what really helps you improve.
[00:33:00] Kaspar’s three core principlesThe key ideas he hopes every statistician remembers after this episode.
Links:
🔗 The Effective Statistician Academy – I offer free and premium resources to help you become a more effective statistician.
🔗 Medical Data Leaders Community – Join my network of statisticians and data leaders to enhance your influencing skills.
🔗 My New Book: How to Be an Effective Statistician - Volume 1 – It’s packed with insights to help statisticians, data scientists, and quantitative professionals excel as leaders, collaborators, and change-makers in healthcare and medicine.
🔗 PSI (Statistical Community in Healthcare) – Access webinars, training, and networking opportunities.
Join the Conversation:Did you find this episode helpful? Share it with your colleagues and let me know your thoughts! Connect with me on LinkedIn and be part of the discussion.
Subscribe & Stay Updated:Never miss an episode! Subscribe to The Effective Statistician on your favorite podcast platform and continue growing your influence as a statistician.

Nov 27, 2025 • 27min
External control arms - how to get to a good one
A conversation with Deepa Jahagirdar
Why Listen
✔ You want a clearer understanding of when and why ECAs make sense.
✔ You’re dealing with real-world data and need a practical framework for selecting the right source.
✔ You’ve heard the term target trial emulation, but want to understand how it’s applied in real projects.
✔ You want to strengthen the causal credibility of your studies without relying solely on randomized trials.
✔ You want simple, actionable principles for handling confounding and unmeasured bias.
Episode Highlights:
[00:00] – Setting the stageI introduce the topic of external control arms and why they’re more widely relevant than many statisticians think.
[01:35] – Introducing DeepaDeepa shares her path from social epidemiology into designing and supporting ECA studies at Cytel.
[03:00] – Why ECAs are fascinatingWe talk about how methods used to study policies without RCTs translate into clinical research.
[04:00] – Where ECAs show upI walk through common scenarios—from rare diseases to extension studies—where external controls add value.
[07:30] – Choosing the right real-world dataDeepa explains how she approaches data selection depending on disease, outcomes, and feasibility.
[10:20] – Target trial emulationWe discuss how designing the “ideal RCT” guides everything that follows when constructing an ECA.
[16:30] – Handling confoundingDeepa explains the role of expert knowledge, DAGs, and standard adjustment approaches.
[21:20] – Thinking about unmeasured confoundingWe talk about assessing robustness and understanding how much bias it would take to overturn your results.
[24:20] – Final takeawaysDeepa highlights the importance of focusing on the big causal question and overall robustness—not perfection.
Links:
🔗 The Effective Statistician Academy – I offer free and premium resources to help you become a more effective statistician.
🔗 Medical Data Leaders Community – Join my network of statisticians and data leaders to enhance your influencing skills.
🔗 My New Book: How to Be an Effective Statistician - Volume 1 – It’s packed with insights to help statisticians, data scientists, and quantitative professionals excel as leaders, collaborators, and change-makers in healthcare and medicine.
🔗 PSI (Statistical Community in Healthcare) – Access webinars, training, and networking opportunities.
Join the Conversation:Did you find this episode helpful? Share it with your colleagues and let me know your thoughts! Connect with me on LinkedIn and be part of the discussion.
Subscribe & Stay Updated:Never miss an episode! Subscribe to The Effective Statistician on your favorite podcast platform and continue growing your influence as a statistician.
**Episode Highlights:
**
[00:00] – Setting the stage
I introduce the topic of external control arms and why they’re more widely relevant than many statisticians think.
[01:35] – Introducing Deepa
Deepa shares her path from social epidemiology into designing and supporting ECA studies at Cytel.
[03:00] – Why ECAs are fascinating
We talk about how methods used to study policies without RCTs translate into clinical research.
[04:00] – Where ECAs show up
I walk through common scenarios—from rare diseases to extension studies—where external controls add value.
[07:30] – Choosing the right real-world data
Deepa explains how she approaches data selection depending on disease, outcomes, and feasibility.
[10:20] – Target trial emulation
We discuss how designing the “ideal RCT” guides everything that follows when constructing an ECA.
[16:30] – Handling confounding
Deepa explains the role of expert knowledge, DAGs, and standard adjustment approaches.
[21:20] – Thinking about unmeasured confounding
We talk about assessing robustness and understanding how much bias it would take to overturn your results.
[24:20] – Final takeaways

Nov 10, 2025 • 40min
Top 9: Non-parametric analyses - much more than just the Wilcoxon test!
Frank Konietschke, a Professor of statistics with expertise in non-parametric methods, dismantles the myth that non-parametric means just Wilcoxon tests. He explores a broad toolkit for analyzing skewed data, outliers, and small samples. Learn how ranks can quantify the relative treatment effect without relying on means, and discover effective ways to present results using confidence intervals and visuals. Frank also shares valuable software tools for implementing rank-based models, ensuring you don't miss the innovative strategies available for robust statistical analysis.

Oct 27, 2025 • 24min
How to communicate results from adaptive studies simple, but still correct
In this engaging discussion, Kaspar Rufibach, an experienced biostatistician and authority on adaptive clinical trials, shares his insights. He explains the challenges of communicating results from adaptive studies and emphasizes the importance of using clear, defensible language. Listeners learn about the difference between conditional and unconditional bias, the implications for point estimates, and the significance of median-unbiased estimation. Kaspar also addresses the complexities surrounding secondary endpoints and the necessity of pre-specifying adjustments to ensure trust and reproducibility.

10 snips
Oct 20, 2025 • 30min
Introduction to adaptive designs and ICH E20
In this discussion, Kaspar Rufibach, an experienced biostatistician and adaptive clinical trial expert, delves into the practicalities of adaptive designs and the ICH E20 guideline. He explains why these designs save time and the types of meaningful adaptations available for drug development. Kaspar also addresses the operational barriers preventing wider use of adaptive trials and emphasizes the importance of understanding their implications on endpoints and inference. Lastly, he outlines the key points of the new ICH E20 guideline that statisticians should note.

Sep 29, 2025 • 36min
Leadership, Influence & Presenting: Human Skills That Make Statisticians Effective
A conversation with Alexander Schacht and Alun Bedding
Why You Should Listen:
✔ Hear my personal reflections on 456 episodes and the evolution of this podcast.
✔ Learn a simple, values-based view of leadership that applies no matter your level.
✔ Discover how to influence people—not departments—and build trust.
✔ See why contextual teaching beats generic “Stats 101” courses.
✔ Walk away with three immediate actions: decide to lead, listen deeply, and invest in your presentation skills.
Episode Highlights:
00:00 – Why Alun is interviewing me for Episode 456
01:57 – What counts as an “episode” and why this milestone matters
03:03 – From estimands to blurred lines across stats/data science
06:10 – My view of leadership: helping others accomplish something
08:08 – Values, purpose, and the “win–win” principle
10:09 – Goal-driven meetings and tying them to vision and values
12:44 – Why you can’t influence a department—you influence people
15:47 – Trust = character × competence × care (as others perceive it)
17:16 – Being known: why personal and departmental branding matters
19:00 – How targeted training builds credibility and influence
23:00 – Presentation skills as a multiplier for all other communication
28:34 – Listening: the most underrated leadership skill
33:00 – My three practical actions to apply this week
35:30 – Closing thoughts and invitation to connect
Resources and Links:
Stephen R. Covey — The 7 Habits of Highly Effective People
Michael Hyatt — leadership and values-driven success
John Blakey — trust model (ability, integrity, benevolence)
Oscar Trimboli — How to Listen
Toastmasters — practice for public speaking
How to Be an Artist (book on learning and creativity)
🔗 The Effective Statistician Academy – I offer free and premium resources to help you become a more effective statistician.
🔗 Medical Data Leaders Community – Join my network of statisticians and data leaders to enhance your influencing skills.
🔗 My New Book: How to Be an Effective Statistician - Volume 1 – It’s packed with insights to help statisticians, data scientists, and quantitative professionals excel as leaders, collaborators, and change-makers in healthcare and medicine.
🔗 PSI (Statistical Community in Healthcare) – Access webinars, training, and networking opportunities.
Join the Conversation:Did you find this episode helpful? Share it with your colleagues and let me know your thoughts! Connect with me on LinkedIn and be part of the discussion.
Subscribe & Stay Updated:Never miss an episode! Subscribe to The Effective Statistician on your favorite podcast platform and continue growing your influence as a statistician.

20 snips
Sep 15, 2025 • 46min
Top 8: The Single Arm Studies and What are the Alternatives?
Anja Schiel, a vice chair at UNETA 21 and expert at the Norwegian Medicines Agency, delves into the complexities of single-arm studies in drug approval. She discusses the critical need for robust comparisons in evidence evaluation and the limitations of single-arm designs. Anja also highlights the importance of concurrent controls and shares practical strategies for choosing effective comparators. With insights into adaptive trial designs, she sheds light on statistical communication between regulators and HTA bodies, emphasizing the need for clear evidence strategies.

Sep 8, 2025 • 27min
Top 7: How to work with a physician within Pharma to become a valuable partner
Discussion with Benjamin Piske and Alexander Schacht
Why You Should Listen:
Working with physicians isn’t always easy. Different mindsets, expectations, and communication styles can get in the way. In this episode, you’ll hear how to:
✔ Build trust and respect with physicians in pharma
✔ Communicate effectively across disciplines
✔ Know when to support, when to push back, and how to be seen as a partner
Episode Highlights:
[01:28] Introducing the topic of working with physicians in pharma
[02:27] Seeing physicians as colleagues, not customers
[04:53] Learning to speak each other’s language
[06:26] Cultural challenges for physicians moving from hospitals into pharma
[10:59] Approaching discussions with a partnership mindset
[12:59] Why involving statisticians early leads to smoother studies
[15:18] Strategies for handling disagreements constructively
[19:08] The p-value debate and knowing when to push back
[24:55] Explaining outputs so physicians (and beyond) can understand
[25:26] The idea of having a physician mentor
Links:
🔗 The Effective Statistician Academy – I offer free and premium resources to help you become a more effective statistician.
🔗 Medical Data Leaders Community – Join my network of statisticians and data leaders to enhance your influencing skills.
🔗 My New Book: How to Be an Effective Statistician - Volume 1 – It’s packed with insights to help statisticians, data scientists, and quantitative professionals excel as leaders, collaborators, and change-makers in healthcare and medicine.
🔗 PSI (Statistical Community in Healthcare) – Access webinars, training, and networking opportunities.
Join the Conversation:Did you find this episode helpful? Share it with your colleagues and let me know your thoughts! Connect with me on LinkedIn and be part of the discussion.
Subscribe & Stay Updated:Never miss an episode! Subscribe to The Effective Statistician on your favorite podcast platform and continue growing your influence as a statistician.

Sep 1, 2025 • 36min
Top 6: What is EU HTA and why should statisticians care?
Interview with Lara Wolfson and Anders Gorst-Rasmussen
Why You Should Listen:
✔ EU HTA is becoming reality: Joint Clinical Assessments begin soon with oncology/ATMPs and will expand to all medicines over the next years.
✔ Statisticians are central: Re-analyses, indirect comparisons, RWE, and quality-of-life analyses will be required—often beyond what regulatory trials were designed for.
✔ Timelines are tight: From EMA Day 120 scoping to dossier deadlines and final JCAs just 30 days post-marketing authorization.
✔ Transparency and resources matter: Joint assessments will be public, and both companies and agencies face capacity and clarity challenges.
✔ You can prepare now: Incorporate HTA needs into trial design, analysis planning, and cross-functional collaborations.
Episode Highlights:
00:00 – 02:30 | I introduce the episode and explain why EU HTA is such a critical topic
02:30 – 05:30 | Lara and Anders introduce themselves and their HTA work at MSD and Novo Nordisk
05:30 – 10:45 | Regulatory vs. HTA: safe & effective vs. how good, for whom, and at what cost
10:45 – 18:30 | Europe’s patchwork: national differences in comparators, standards of care, and access
18:30 – 23:45 | The EU regulation: joint clinical assessments, economic modeling, and what’s changing
23:45 – 32:30 | What it means for us as statisticians: re-analyses, ITCs/NMAs, RWE, QoL, and capacity issues
32:30 – 36:00 | Why “transparency” can’t just be 50,000-page PDFs—clear, reproducible evidence matters
36:00 – 45:00 | The PSI HTA SIG’s role, current activities, and how you can get involved
45:00 – end | Our final takeaways and a call for statisticians to engage now
Links:
🔗 Join the PSI HTA Special Interest Group and watch for their newsletter and training.
🔗 Review EUnetHTA 21 methodological drafts—they are shaping the future of JCAs.
🔗 The Effective Statistician Academy – I offer free and premium resources to help you become a more effective statistician.
🔗 Medical Data Leaders Community – Join my network of statisticians and data leaders to enhance your influencing skills.
🔗 My New Book: How to Be an Effective Statistician - Volume 1 – It’s packed with insights to help statisticians, data scientists, and quantitative professionals excel as leaders, collaborators, and change-makers in healthcare and medicine.
🔗 PSI (Statistical Community in Healthcare) – Access webinars, training, and networking opportunities.
Join the Conversation:Did you find this episode helpful? Share it with your colleagues and let me know your thoughts! Connect with me on LinkedIn and be part of the discussion.
Subscribe & Stay Updated:Never miss an episode! Subscribe to The Effective Statistician on your favorite podcast platform and continue growing your influence as a statistician.
Glossary:
HTA – Health Technology Assessment
EU HTA / JCA – Joint Clinical Assessment forming the evidence base for national HTA decisions
EMA / CHMP – European Medicines Agency / Committee for Medicinal Products for Human Use
RWE – Real-World Evidence; NMA/ITC – Network/Indirect Treatment Comparison
QoL/HRQoL – (Health-Related) Quality of Life measures
PSI HTA SIG – PSI Special Interest Group on HTA
EFPIA – European Federation of Pharmaceutical Industries and Associations

Aug 25, 2025 • 53min
Top 5: The analysis of adverse events done right
Kaspar Rufibach, an expert in survival analysis and member of the SAVVY collaboration, and Jan Beyersmann, a professor of biostatistics at Ulm University, discuss the complexities of analyzing adverse events in clinical trials. They highlight how varying follow-up times can bias results and advocate for using the Aalen–Johansen estimator as a standard practice. The conversation emphasizes the successful collaboration between pharma and academia, revealing how real-world data can change the perception of treatment risks and enhance benefit-risk evaluations.


