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COS-C Exam
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train_bot train_bot About OASIS
       
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COS-C Exam
Formerly provided by The OASIS Certificate & Competency Board (OCCB)


Exam Overview

The Certificate for OASIS Specialist-Clinical (COS-C) exam is the only nationally standardized, psychometrically validated test that evaluates a clinician's knowledge of CMS' OASIS guidelines.
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The exam items are developed by the COS-C Exam Review Committee, a group of OASIS content experts who create these items to reflect the OASIS knowledge and skills identified as necessary for competent OASIS data collection (Exam Committee link pending). Once assembled, the test then undergoes a holistic review by a psychometrician and the COS-C Exam Review Committee, who examine the test for accuracy, significance, fairness, and conformity to test specifications. Exam items are then placed through a rigorous item-analysis adhering to psychometric industry standards to detect any questionable item performance. The results are reviewed so that item ambiguities are detected and the necessary adjustments made before scoring.

COS-C Exam Non-Disclosure Statement - A confidentiality agreement applying to all candidates.


What does this mean? Why does it matter?

The COS-C exam was originally developed and administered by the OASIS Certificate & Competency Board (OCCB). The COS-C exam is a voluntary certificate examination available to home care providers interested in demonstrating and establishing their expertise and commitment to OASIS data accuracy. Exam administrators go to great lengths to ensure that the COS-C exam is an accurate reflection of the most current CMS guidance, and that it is administered in a way to protect the integrity of the resulting COS-C designation. This requires vigilance in both exam analysis and proctoring efforts. The COS-C exam is reviewed and updated, including regular item-analysis to determine that all items are performing as originally intended. Ongoing analysis and stringent proctoring methods are critical to maintaining exam integrity and the resulting COS-C designation. The extensive psychometric process is necessary not only to verify each item as reliable and an appropriate representation of CMS' rules but also to determine that all questions are written in an accurate and fair manner. How a question is asked is as important as what the question is asking. Knowing that the COS-C exam meticulously covers CMS' OASIS guidance is not enough. Only when we statistically verify that each item is psychometrically and technically sound and ensure the test is administered in a conducive and protected environment, does the exam attain credibility; credibility that bestows value upon the resulting COS-C designation.


Exam Details
Exam Audience
bullet Anyone interested can sit for the COS-C Exam. There are no requirements other than a desire to demonstrate your knowledge of CMS data collection guidance, and commitment to OASIS data accuracy.
bullet Suggested professions: Home Health Nurses, Therapists or other home health professionals responsible for any of the following:
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bullet conducting comprehensive assessments
bullet scoring OASIS items
bullet auditing clinical records
bullet educating or orienting staff
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Exam Description
bullet 2.5 hour examination
bullet 100 multiple choice questions
bullet Examination content is based on the most current rules and guidance provided by CMS. (Visit our Resources page)
bullet Scores are based upon the number of questions answered correctly.
bullet Open-book; candidates are allowed to bring in outside resources and reference materials
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Exam Domains
bullet Time Points
bullet Patient Populations
bullet OASIS- related Regulations
bullet Item-by-Item Guidance and Conventions
 


Exam Preparation
For more detail on exam content, including domains & sample questions, please see the Exam Preparation page.



 
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