Score Interpretation Guide for Examinees - 2020 IFOM CSE

Sep 25, 2026

Guide explaining how to interpret the NBME International Foundations of Medicine (IFOM) 2020 Clinical Science Examination (CSE) equated percent-correct scores for examinees. Describes score construction, classic 0–100% metric, equating and statistical adjustment across administrations, and how to compare performance over time. Covers measurement precision using standard error of measurement (SEM), recommended score intervals, and considerations by test modality and language. Details uses for individuals, institutions, and norms against the International Comparison Group, including percentile rank and certification criteria near the USMLE Step 2 CK benchmark.

LanguageEnglish

CategoryExam

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

IFOM CSE Scores

Precision of Scores

Interpreting IFOM CSE Scores

International Comparison Group (ICG)

Examination Feedback

Norm Table

NATIONAL BOARD OF MEDICAL EXAMINERS® INTERNATIONAL FOUNDATIONS OF MEDICINE® (IFOM®) 2020 CLINICAL SCIENCE EXAMINATION Score Interpretation Guide for Examinees The NBME® International Foundations of Medicine ® (IFOM ® ) program provides medical schools internationally with tools for measuring examinees' understanding of the medical sciences. The IFOM Clinical Science Examination (CSE) assesses the medical knowledge and understanding of clinical science considered essential for the provision of safe and effective patient care. IFOM CSE Scores The IFOM CSE score is an equated percent correct score that represents mastery of the content domain assessed by the examination. It is calculated as the percentage of items in the total content domain that would be answered correctly based on an examinee's proficiency level. Scores are placedon a classic percent correct metric (0-100%) to facilitate interpretation. IFOM CSE scores are equated across test administrations and are statistically adjusted for variations in test form difficulty. Consequently, these scores can be used to compare and track performance over time. The 2020 IFOM CSE is administered in both paper-and-pencil and web formats and is offered in Portuguese, Spanish and International English. Caution should be used in the interpretation of scores as the modality and language of the test administration may affect performance for some examinees. In addition, the stakes associated with the IFOM CSE administration may affect performance for some examinees due to differences in preparation and motivation. Precision of Scores Measurement error is present on all tests, and the standard error of measurement (SEM) provides an index of the imprecision of scores. The SEM is approximately 3 points for the IFOM CSE. Using the SEM, it is possible to calculate a score interval that indicates how much a score might vary across repeated testing using different sets of items covering similar content. An interval expected to encompass about two thirds of scores observed on repeated testing may be found by adding and subtracting the SEM from the reported score. Interpreting IFOM CSE Scores The IFOM CSE is used for a variety of purposes by both individuals and institutions. Individuals use IFOM CSE for several purposes, including participation in exchange programs, application for postgraduate training programs and professional positions, and self-assessment relative to international standards. Medical schools use IFOM CSE for formative and summative assessment, curriculum evaluation and international benchmarking. Post-graduate programs use IFOM CSE for selection of graduates for training. Ministries of health/education use IFOM CSE as part of assessment for regional certification. As implied based on the variety of uses of IFOM CSE, it is utilized for both high-stakes and low-stakes assessment purposes. The stakes for the examinee taking the IFOM CSE as well as differences in educational level, preparation and motivation may affect performance. These factors should be considered when interpreting performance and when comparing performance based on one use of IFOM CSE to performance based on a different use. These factors should also be considered when interpreting IFOM performance relative to Step 2 CK performance and the Step 2 CK minimum passing score. Step 2 CK is a very high-stakes examination that is taken after intense preparation. While the IFOM CSE score of 72 that corresponds approximately to the Step 2 CK minimum passing score is useful as a benchmark, stakes and preparation for IFOM CSE examinees may differ substantially and should be taken into consideration when making comparisons. International Comparison Group (ICG) The International Comparison Group (ICG) included 5,625 examinees from the Americas (21 .4%), Asia including the Middle East (18 . 1%), Europe (37 .3%) and Oceania (23 . 2%) taking the IFOM CSE in 2015- 2019 during the final year of medical

FAQs

What does the IFOM CSE equated percent-correct score represent?

It is an equated percent-correct score reflecting mastery of the assessed content domain. It is calculated as the percent of items in the total content domain that would be answered correctly based on an examinee’s proficiency level.

How should examinees account for score uncertainty?

The guide explains measurement error using the standard error of measurement (SEM), approximately 3 points. It recommends forming a score interval by adding and subtracting the SEM to estimate how scores may vary across repeated testing.

How can the 2020 IFOM CSE score be compared to other benchmarks or uses?

The guide states the score can be used for multiple assessment purposes, but interpretation should consider stakes and differences in preparation and motivation. It also cautions that IFOM CSE scores are not interchangeable with USMLE Step 2 CK scores, while noting an approximate correspondence benchmark at a score of 72.

Sep 25, 2026

Uploaded by Riley West