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* nbme score conversion.
 #140844  
  starbright - 11/23/06 13:10
 
  Can someone pl tell me where to go to get a conversion of nbme 3 digit score into a two digit one?  
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* Re:nbme score conversion.
#569951
  dr_nuri - 11/24/06 11:30
 
  see rightaway on the exam feedback they give u after u take exam...to give u idea..its like 600 3 digit corresponding to 97/98 2 digit score..  
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* Re:nbme score conversion.
#570684
  harrypotter - 11/25/06 06:54
 
  National Board of Medical Examiners®
NBME® Comprehensive Basic Science Self-Assessment (CBSSA)
Performance Profile
This is a sample performance profile. Your form may have slightly different score categories.
The material presented in this self-assessment is provided by the National Board of Medical Examiners (NBME®) for
educational purposes only. The CBSSA is not intended to predict a participant’s performance on USMLE. Rather, the
CBSSA is designed to serve as a tool to determine areas of relative strength and weakness in the basic sciences.
The score you received, indicated above in the top right hand corner, ranges from 200 to 800. It is scaled to have a mean of
500 and a standard deviation of 100 in a reference group of USMLE Step 1 first-takers from accredited US schools.
The Performance Profile is provided to aid in self-assessment. The shaded region defines a borderline level of performance
for each content area. Performance bands indicate areas of relative strength and weakness. Some bands are wider than
others. The width of a performance band reflects the precision of measurement: narrower bands indicate greater precision.
An asterisk indicates that your performance band extends beyond the displayed portion of the scale. Small differences in
the location of bands should not be over-interpreted. If two bands overlap, performance in the associated areas should be
interpreted as similar. Because CBSSA is designed to be integrative, many items contribute to more than one content area.
Thus, caution should be used when interpreting differences in performance across content areas.
Additional information concerning the topics covered in each content area can be found in the USMLE Step 1 Content
Description and Sample Test Materials (www.usmle.org).
Name: Sample Performance Profile Test Date: 11/7/2005
Assessment Score: 310
National Board of Medical Examiners®
Self-Assessment Services
Score Interpretation Guide
NBME® Comprehensive Basic Science Self-Assessment (CBSSA)
This guide will help you interpret the Assessment Score you received on your CBSSA Performance Profile. While the
CBSSA is provided by the NBME for educational purposes only and is not intended to predict performance on Step 1,
NBME research demonstrates that under certain circumstances there is a moderate relationship between performance on
CBSSA and subsequent Step 1[1].
Step 1 scores are reported on a three-digit scale with a mean ranging from 200 to 220 and a standard deviation of
approximately 20. CBSSA scores are scaled to have a mean of 500 and a standard deviation of 100. Both means are
based on the performance of USMLE Step 1 first-time examinees from accredited US medical schools. The following
information is provided in response to user requests to “translate” the CBSSA score scale to the USMLE score scale. The
NBME does not warrant that any individual performance on CBSSA will predict performance on USMLE Step 1 and
cautions users of CBSSA against making any predictive inferences.
In the following table, locate your CBSSA score and find the approximate corresponding Step 1 score in the adjacent
column. (For example, if your CBSSA score is 390, it approximates a Step 1 three-digit score of 190.)
The level of proficiency required to pass USMLE Step examinations is reviewed periodically and may be adjusted at any
time. Visit the USMLE website at www.usmle.org for the most current information about the level of proficiency required to
pass Step 1.
CBSSA Score
Approximate
Step 1
Three-Digit Score CBSSA Score
Approximate
Step 1
Three-Digit Score
800 >265 490 216
790 265 480 214
780 264 470 211
770 263 460 209
760 262 450 206
750 261 440 204
740 260 430 201
730 259 420 198
720 258 410 195
710 257 400 192
700 256 390 190
690 254 380 186
680 253 370 184
670 252 360 180
660 250 350 178
650 248 340 175
640 247 330 172
630 245 320 169
620 244 310 166
610 242 300 163
600 240 290 160
590 238 280 157
580 236 270 154
[1] Using the NBME Self-Assessments to Project Performance on USMLE Step 1 and Step 2: Impact of Test Administration
Conditions, Academic Medicine, Vol. 79, No. 10/ October Supplement 2004
570 234 260 151
560 232 250 148
550 230 240 145
540 228 230 142
530 226 220 140
520 224 210 136
510 221 200 <136
500 219
 
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* Re:nbme score conversion.
#570687
  harrypotter - 11/25/06 06:57
 
  oops i didnt copy it properly
first column is nbme score
second column represents 3 digit score
similarly 3rd and 4th columns
 
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* Re:nbme score conversion.
#570712
  img2008 - 11/25/06 07:37
 
  To dear harrypotter or some kind soul

Could you please tell me how to correlate the no of coorrect answers (from doing the downloaded NBME forms) with the three digit score/NBME score

Many Thanks to harrrypotter for the post

God Bless
 
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* Re:nbme score conversion.
#570818
  tallu - 11/25/06 11:14
 
  hi
accrding to my exp n the set of saved qs n answers that i gt
620=244=approx 86-88 percent qs rght on nbme exam

n i checked those on form 3 n 4
as i did those online

so if u r scoring abve 86-88 percent u r rght on the money

 
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* Re:nbme score conversion.
#570842
  img2008 - 11/25/06 11:44
 
  Thank you very much Tallu

Wish You All The Best

God Bless
 
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