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Anonymous A
on May 17, 2022
Global
I want to receive updates regarding this question via email.

PEI Personal Impact - How many iterations to convince someone

Hi,

for the PEI on Personal Impact, how many iterations should there ideally be until I convince my vis-a-vis? I read that it is not recommended to have too many, as it could be perceived as being reluctant to the feedback and stubborn.


What is the rule?

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Clara
Coach
on May 20, 2022
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello!

I believe you are overthinking this one. There is not such a KPI as “number of iterations”. What´s true is that the story needs to be convincing and good (which means that you need to convince a “good” stakeholder about something “hard”, that doesn´t always happen in the first iteration). However, it´s not a must -think for instance of a great example in which you literally only have one shot at this, that would make you rule out a potentially great story!

If you want to deep dive on the topic, the "Integrated FIT guide for MBB" has been recently published in PrepLounge´s shop (https://www.preplounge.com/en/shop/tests-2/integrated-fit-guide-for-mbb-34)

It provides an end-to-end preparation for all three MBB interviews, tackling each firms particularities and combining key concepts review and a hands-on methodology. Following the book, the candidate will prepare his/her stories by practicing with over 50 real questions and leveraging special frameworks and worksheets that guide step-by-step, developed by the author and her experience as a Master in Management professor and coach. Finally, as further guidance, the guide encompasses over 20 examples from real candidates.

Furthermore, you can find 3 FREE Expert Articles on PreLounge, in a sreies dedicated to preparing for the different parts of FIT:

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Feel free to PM me for disccount codes for the Integrated FIT Guide, since we still have some left from the launch

Hope it helps! 

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Cristian
Coach
on Mar 31, 2024
#1 rated McKinsey Coach | top MBB coach

That's a great question.

Especially because the most common mistake I notice with stories related to personal impact is that the situation resolves itself too easily - the typical one here is that the candidate went with ‘data' to whoever they needed to convince, and then it worked out. 

There is no magic number, but around 3-4 iterations is what it looks like in reality when you are trying to persuade somebody more complicated.

For anyone else who is preparing for the PEI component, I've created a video course with my 6-step storytelling framework that has helped my candidates get distinctive feedback on the McKinsey PEI. You can find out more about it here:

  • Video Course: Master the McKinsey PEI

Best,
Cristian

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Ken
Coach
edited on May 19, 2022
Ex-McKinsey final round interviewer | Executive Coach

Unlike entrepreneurial drive where your resilience is crucial, I would simplify it for personal impact.  It’s important to share the initial conflict but from there, the focus should be more on how you were able to influence that person.  If that involves a few iterations then fine but I would only do so if it helps communicate across the challenge/complexity or additional aspects of your influencing.  Good luck!

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Florian
Coach
on May 18, 2022
1400 5-star reviews across platforms | 600+ offers | Highest-rated case book on Amazon | Uni lecturer in US, Asia, EU

Hey there,

How many iterations it took is not a metric that is very relevant. You can effectively convince a person or group within one go if you showcase how you tailored your approach and arguments to the person and the situation.

I usually work on stories with one or two iterations, just because it makes it easier to tell a convincing story (pun intended) with a proper story arch and development over time.

If you want to read more on the PEI, check out my article here: https://www.preplounge.com/en/articles/mckinsey-pei

Cheers,

Florian

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Ian
Coach
on May 18, 2022
Top US BCG / MBB Coach - 5,000 sessions |Tech, Platinion, Big 4 | 9/9 personal interviews passed | 95% candidate success

Hi there,

I totally agree with Ken - it's more about being clear on how you persuaded them.

If you did it in 1 go, but employed multiple techniques (data, communication, hearing them out first, etc.) then that's fine! 

It really depends on the story and how the “flow” sounds but 1-2 is reasonable. Of course, this doesn't count the “initial” persuasion where you tried and they said no.

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