All I'm saying is the nurse example doesn't really prove the main argument, which is that fewer interruptions equals fewer errors. Right now, it appears everyone reading this wants to apply this seemingly proven technique in their own work place, when (maybe) all they need is a device that reminds them that 1.) they make mistakes and 2.) their mistakes are being measured and observed.
Yes. You make an interesting point about how the research doesn't clearly isolate the cause of the changes. What it does highlight is that you can change the environment to effect performance improvements.
All I'm saying is the nurse example doesn't really prove the main argument, which is that fewer interruptions equals fewer errors. Right now, it appears everyone reading this wants to apply this seemingly proven technique in their own work place, when (maybe) all they need is a device that reminds them that 1.) they make mistakes and 2.) their mistakes are being measured and observed.