You don't know enough to make that claim.
Yes I do- because it's how statistics work.
If there's no substantive difference between the 35 states included, and the 15 not, in terms of vehicle quality, then it shouldn't matter to the validity of the results nationally.
There are probably differences in the presentation of the survey that could lead to bias as to who responds (most people throw such surveys in the trash so this could be a very significant deal). The surveys that are sponsored and approved by GMC, Ford, etc. probably make use of that fact to increase the number of responsive owners. JD Powers can't pretend to be doing the survey with Tesla's approval which probably harms the response rate (although those with an issue to complain about have a higher motivation to respond).
Can you unpack that a bit?
To my knowledge they send the same survey to everyone.
So again there should be no difference from one person to another in that regard.... and no impact
of any kind regarding who 'sponsors' anything.
Everyone gets the same set of questions.
Also, my guess is that Tesla owners have a lower response rate than those purchasing from traditional OEM's (but again, those with something to complain about want to be "heard").
That's possible. But again doesn't really change much unless you have a reason to think
upset Tesla owners are somehow MUCH more likely to respond than upset owners from all other brands?
There's a reason why JD Powers excludes the Tesla data (because they know it's not statistically comparable).
But they don't exclude it.
The entire point of the story was that they're publishing their results based on the 35 states they were able to send surveys to.
It does get an asterisk, because hey, maybe there's some weird reason cars in 70% of US states are MUCH WORSE than the cars that get delivered to the other 30%- no way for them to know since they can't survey them.
But to my knowledge no such difference in quality between states appears for any other car maker- so why should it for Tesla?
To make up excuses and say it shouldn't matter much and the results should be comparable is to do the same thing JD Powers is doing
That's not an excuse- it's a basic understanding of how statistics work.
Statistically valid surveys show Tesla owners have the highest owner satisfaction rates of ANY brand by a strong margin which doesn't really square.
Sure it does.
You're comparing two different things.
JD Power simply tallies the total # of issues with new cars in the first 90 days. That's it.
If your wheels fall off while driving 70 mph.... or your charge port door is slightly misaligned... that's each ONE problem.
Of exactly equal value in the survey.
If you don't like how sometimes your Tesla doesn't send a voice-to-text message (a problem mine has) that's ONE problem.
So is if your front axle collapses as some Fords had happen to them a while back.
Now... it's likely the owners of the more serious problems I mention will have much lower SATISFACTION with their cars... because that's a DIFFERENT question being asked.
You seem to be looking for excuses as why 70% of US states reporting a high # of initial problems (a fact, based on JD Powers data) somehow isn't a fact.
Instead you should be understanding the framework of that fact, and why those owners are likely (are almost certain to be based on other data available) still more satisfied with those cars than owners of other vehicles that had fewer, but likely more serious, problems.
