Hey, Awk, I agree that an applicant is best served by asking the medical schools directly how they would treat course withdrawals and variants. This is information that only the schools will have, and not AMCAS. I also agree that some medical schools will disregard your AMCAS-calculated GPA's for their own calculations, based on the course information that they receive from your AMCAS profile. Obviously, schools have the right to interpret your classwork as they see fit; that's their prerogative. Clearly, AMCAS has no say over how a school would do this; they simply provide the applicant profile, which includes all your verified coursework and AMCAS-calculated GPA's.
However, I don't think it is good practice to make a strong, blanket statement such as, "there is no AMCAS GPA", when there clearly is one. Many schools do use the GPA's calculated from AMCAS. Yes, the AAMC does calculate a GPA for you; please check their website and the AMCAS instructions. I acknowledge that some medical schools will calculate and use their own GPA's, but there are also many schools that will simply take your AMCAS-calculated ones and use them for admissions purposes. So, to make such universal statements as, "there is no AMCAS GPA", or, "AAMC does not calculate a GPA for you," is to be misleading, since it is quite clear that AMCAS GPA's do exist and it is calculated by AAMC/AMCAS. There are actually three AMCAS-calculated GPA's: undergraduate, postbaccalaureate undergraduate, and graduate. The AMCAS-calculated undergraduate GPA is broken down by freshman, sophomore, etc., and cummulative, which also averages in the postbaccalaureate undergraduate work. All three categories are broken down into BCPM and AO, as you know.
I am not an adcomm member, but I seriously doubt that all medical schools follow the methodology you state. Like I said earlier, I bet some do. Furthermore, AMCAS will NOT simply report what you give them; they actually verify your material against your official transcripts. If what you enter is different from what's official, they will correct it to match your transcript. Also, they will standardize your reported grades; there is a column for that as well as your original transcript grade. Obviously, you are right that schools get all of this information and can do what they please with all of it, which they receive in the profile for each applicant. Clearly, most schools will examine your course information in some level of detail at some point in the process.
Here is information that I found off of Duke's website regarding AMCAS GPA's:
http://www.aas.duke.edu/trinity/prehealth/app/AprilUpdate2007.doc said:
The AMCAS application previously calculated and displayed an "unofficial AMCAS GPA" so that an applicant could see what his/her AMCAS GPA was likely to be, even before the "official AMCAS GPA" was calculated by AMCAS. Two years ago they decided they would no longer provide and "unofficial GPA", but rather they would wait until they could report the official one.
If you want to go through the AMCAS calculation to see what your "unofficial AMCAS GPA" would be, you can use the grade conversion information available on the AMCAS Web site. Remember that for the purposes of calculating your AMCAS GPA, a full 1cc course at Duke is equal to 4 semester hours; a 0.5 cc course is 2.0 semester hours, etc. Or you can wait for AMCAS to process the application. Once processing is complete, AMCAS will notify you of your "official AMCAS GPA" that will be transmitted to the designated medical schools.
Here is information from the AAMC website regarding the same subject:
http://www.aamc.org/students/applying/advisors/amcas2006slidenotes.pdf said:
Standardized grading information: colleges do not follow a national standard for awarding credits and grades, and therefore, GPA calculations may differ from one institution to the next according to internal standards and policies. The medical schools need a way to compare applicants on the same scale, which is why AMCAS "normalizes" grading systems and calculates an "AMCAS GPA." The medical schools use the AMCAS GPA in their admissions review, rather than the GPA's calculated on each school's transcript. The following is a common example that affects many applicants:
The AMCAS GPA calculation includes all attempted credits - AMCAS does not recognize "forgiveness" policies.
Example: you failed a three-credit semester course the first time you took it, then earned an "A" the second time. If the school has a forgiveness policy, your GPA for that class will be a 4.0, but your AMCAS GPA will be 2.0.
In addition, AMCAS calculates a cumulative, undergraduate GPA for applicants who have attended more than one institution.
If the applicant wishes to calculate an approximate AMCAS GPA, s/he may use the grade conversion chart available on the AMCAS Web site, or wait for AMCAS to process the application. Once processing is complete, AMCAS will notify the applicant and provide the GPA that will be transmitted to the designated medical schools.