I have to disagree with the statement that STEP score are a reflection of the quality of instruction at a med school. STEP scores are much more a reflection of 2 things: 1) the student’s ability to perform well on standardized exams; 2) the effort and preparation that the individual has put into getting ready for the STEP exams. Just like undergrad schools do not specifically prepare students for the MCAT, med schools do not specifically prepare med students for the USMLE. Students are taught/exposed to the material, but retaining/relearning/memorizing/internalizing (or whatever you want to call it) the material and familiarizing oneself with the testing format is strictly on the student’s head. And there is a correlation between MCAT scores and USMLE scores. (High MCAT tends to correlate w/high USMLE.)
Reading a match list is an exercise in pointlessness–there are so many variables involved that you have no idea of why certain people matched where because you don’t know where they applied or what the reasoning was behind their application lists were. (For example,not all students are willing to relocate to locales distant from their med school/home town due to family obligations–like children enrolled in local schools or aging parents or spouses who cannot relocate-- and only apply to a limited number of programs in their desired geographic area. Some students despise highly urban/ highly rural areas and don’t apply to any programs in those areas. Some students red box any program located in X, Y or Z state and don’t apply there no matter how highly the programs there may be.) And more importantly we parents as lay persons really don’t what program are strong in what specialties. Top brand name med schools are not necessarily top ranked in each & every specialty they offer. Some community based residency programs in some specialties may be much more highly regarded than an academic residency in the same field.
Reading a match list to see how many grad match into X specialty is like reading tea leaves–the choice of specialty is extremely personal and more dependent on personality (and STEP scores for competitive fields) than anything else. The distribution of specialty choices from year-to-year will vary hugely.
Transitional and preliminary are not interchangeable. While both are one year terminal programs and both are used by students who match into R2 specialities, the intent behind transitional and preliminary programs are different. Transitional programs are usually pretty cushy intern years (with limited call and nice hours) that rotate thru all specialties both medical and surgical. There is no possibility at these programs that the student can stay past the intern year. Transitional years are only available to students who are also applying for R2 specialties. Preliminary programs run the gamut from cushy to malignant. These program are provisional 1 year placements into either medicine (IM) or surgery (gen surg) but offer the possibility that students in them could be offered an continuing contract and can move into a categorical position at that program. (Some R2 positions require applying thru ERA/NRMP; some do not.)
So why do some grads who have R2 matches also match into prelims instead of transitional programs–there aren’t enough transitional slots to accommodate all graduates who have R2 matches. Also students for their own reasons may wish to spend their intern year in particular location where only prelim years are offered.
A med school where the bulk of its graduates match into prelim or transitional programs and there is no additional R2 specialty match doesn’t tell me that the students have scored poorly on the USMLE --although that could be part of the issue–it tells me the residency advising given to the M4s at that school is bad.
Many prelim-only matches are matches than happen during SOAP because the student didn’t match during the main match. In this sense they are back-up positions, but a prelim-only programs with no follow-ons are usually not a choice a student will rank during the main match unless it’s way, way, way down at the bottom of their rank list or the only program they got an interview at. (Both of which are result of bad advising, hubris on the part of the applicant or some sort of terrible red flag in the candidate’s record).
Some prelim-only matches happen when an applicant matches to a prelim program then fails to match into a R2 specialty. In that case, the candidate will have to re-enter the Match the next year either in hoping to match into a R2 specialty position or into a categorical IM or surgery position.