Date registered: Mar 2007
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
I'm sorry for all the confusion.
This is real research. The goal is to be able to say, "The average Mercedes X-Class requires about 1.2 repair trips per year, while the average Competitor Y requires 0.9 repair trips per year. So the Mercedes requires about one extra repair trip every three years." People can then more easily decide if the advantages of the Mercedes outweigh this disadvantage.
Right now, there's no way to make such a clear comparison. As a result, it's very possible that people overestimate how many repairs they'll have with a Mercedes. Everyone is of course aware of CR's take on Mercedes reliability. What few people realize is that the differences between CR's dots for a 2006 model year car is about 0.03 problems per car. That's about one extra problem for every 30 cars.
For the results of my research to be valid, it's as important to know how many cars have not had problems as how many cars have. The problem with gauging reliability from forums is that there's no way to tell how many cars are not having problems. Also, people with problems are much more likely to post here.
To provide the most valid possible results, my research process only collects data on repairs that haven't happened yet (with the exception of the first month). So people sign up, and afterwards report repairs when they happen.
If there are no repairs, participants simply provide an approximate odometer reading at the end of every quarter. That's how I know the total number of cars to include in the analysis.
Currently over 11,000 people have joined, with over 14,000 cars. The problem is that only a few hundred of these are Mercedes.
As stated in the OP, everyone who helps out will get full access to the results for free.
Vehicle reliability, fuel economy, and price comparison information
Last edited by mkaresh; 05-19-2007 at 12:18 AM.