SH64: Price vs Quality: The Efficiency-Thoroughness Trade Off

SH64: Price vs Quality: The Efficiency-Thoroughness Trade Off

In this episode, we delve into the complexities of dive training agency standards and the challenges faced by instructors in evaluating student performance. While standards outline specific skills, determining their mastery isn't always straightforward. New instructors, lacking experience and nuanced judgment, often prioritize efficiency over thoroughness due to external pressures like time constraints and financial considerations. This efficiency-thoroughness trade-off (ETTO) can compromise the quality of instruction, leading to pass grades for students who may not be fully prepared. The root issue lies in instructors' limited exposure to diverse student experiences and the reluctance of dive centers to invest in extensive observation opportunities. As an industry, we must reconsider this trade-off, where financial concerns often outweigh safety and quality. Ultimately, the responsibility falls on individual divers to evaluate their skills, raising questions about the integrity of certification processes and the adequacy of diver preparedness.

Original blog: https://www.thehumandiver.com/blog/price-vs-quality-the-efficiency-thoroughness-trade-off

Links:

Erik Holnagel’s paper: https://erikhollnagel.com/onewebmedia/ETTO.pdf

Another blog about ETTO: https://www.thehumandiver.com/blog/ETTO

Tags:

English, Decision Making, ETTO, Jenny Lord

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SH312: Your Body Can't Cash the Cheque Your Ego Is Writing

SH312: Your Body Can't Cash the Cheque Your Ego Is Writing

We explore how capable, motivated divers can gradually push beyond safe limits when their environment rewards risk-taking and treats near misses as successes. Using the story of a young technical dive...

7 Loka 16min

SH311: 3. Don’t Wait - Learn From Everyday Work Using HOP Principles

SH311: 3. Don’t Wait - Learn From Everyday Work Using HOP Principles

This episode explores Human and Organizational Performance (HOP), an approach to safety that starts with the idea that people will always make mistakes, so we should focus on understanding why decisio...

3 Loka 6min

SH310: 2. More Than a Deep Dive: What a WWII Bomber Recovery Can Teach Us About Human Factors

SH310: 2. More Than a Deep Dive: What a WWII Bomber Recovery Can Teach Us About Human Factors

This episode explores what really makes complex technical diving successful: not just helium, decompression and equipment, but the people using them. Using the recovery of the WWII B-24 Liberator Tuls...

30 Syys 8min

SH309: Change around Safety Culture is Really Hard

SH309: Change around Safety Culture is Really Hard

In this episode, Gareth Lock reflects on why improving diving safety requires more than telling people to follow the rules. Drawing on his experience in aviation, diving, and safety science, he explai...

23 Syys 14min

SH308: We Know, and We Say Nothing

SH308: We Know, and We Say Nothing

This episode explores why experienced divers still die in situations that seem predictable, using the tragic 2026 Maldives cave accident as a starting point. It looks at how outcome bias, the normalis...

16 Syys 17min

SH307: 1. The 2026 HF in Diving Conference - What Did You Miss?

SH307: 1. The 2026 HF in Diving Conference - What Did You Miss?

This episode explores how a restorative just culture can help the diving community respond to incidents in a way that promotes learning rather than blame. Instead of focusing only on who broke the rul...

9 Syys 15min

SH306: Restorative Just Culture: Repairing Trust After an Event

SH306: Restorative Just Culture: Repairing Trust After an Event

This episode explores the difference between a retributive approach to diving incidents, which focuses on blame and punishment, and a restorative just culture, which focuses on learning, repair, and p...

2 Syys 4min

SH305: Cause Reason. Excuse. Three Words Doing Three Very Different Things.

SH305: Cause Reason. Excuse. Three Words Doing Three Very Different Things.

This episode explores an important distinction that is often missed when discussing diving incidents: the difference between a cause, a reason, and an excuse. A cause explains what contributed to an e...

26 Elo 9min

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