Defining Subject Matter Experts (SMEs)
If you’ve ever taken a professional certification exam or assessment, you may have wondered, “Who decides what’s on this test?” Subject Matter Experts (SMEs) are the practicing professionals who bridge the gap between real-world practice and valid assessment. They’re the reason your credential means something to employers, clients, and the public.
What is an SME in credentialing?
A Subject Matter Expert in the credentialing world is a practicing professional with current, hands-on expertise in the field being certified. SMEs are actively working in the trenches, whether that’s seeing patients, managing projects, counseling clients, or whatever the profession entails. They volunteer or are carefully selected to lend their expertise to developing and validating the assessments that will certify future candidates.
Beyond being knowledgeable, SMEs are trusted representatives of their profession who understand what constitutes competent practice.
The Essential Characteristics of Assessment SMEs
They’re Current Practitioners
SMEs should be actively working in the field, not retired professionals or purely academic experts. This ensures the exam reflects today’s practice environment, current technologies, emerging challenges, and evolving standards. Yesterday’s best practices might be today’s outdated approaches.
They Bring Diverse Perspectives
Strong credentialing programs recruit SMEs from varied backgrounds, including different practice settings (urban vs. rural, corporate vs. nonprofit), geographic regions, specialty areas, and experience levels. This diversity prevents the exam from reflecting only one narrow slice of practice and ensures generalizability and broad representation across the profession.
They Work Well with Others
SMEs don’t work alone. They collaborate with psychometricians and assessment professionals who handle the technical and statistical aspects of exam development. While SMEs provide content expertise, psychometricians ensure the exam is statistically sound, legally defensible, and free from bias.
They Act as Unbiased Gatekeepers
Importantly, SMEs must set aside personal preferences and focus on what’s essential for competent, safe practice. They’re not advocates for their own specialties or favorite topics, but rather guardians of professional standards.
What SMEs Do in Exam Development
Job Task Analysis/Practice Analysis
Before a single exam question is written, SMEs participate in an extensive process to define what practitioners do in their day-to-day work. Through surveys, focus groups, and systematic analysis, they identify the critical tasks, knowledge areas, and skills required for competent practice. This becomes the blueprint for the entire certification program.
Item Writing
SMEs craft exam questions based on real-world scenarios they encounter in practice. They know which situations separate competent professionals from those who need more training.
Content Validation
After questions are drafted, other SMEs review each item for accuracy, relevance, clarity, and fairness. They catch outdated information, unintentional biases, or content that’s too obscure for the exam. They ensure every question has a clear, correct answer and defensible distractors (incorrect answers).
Exam Form Review
Before an exam goes live, SMEs review the entire form to ensure it has the right balance of content areas, difficulty levels, and question formats. They verify that the exam represents the job task analysis and doesn’t over- or underemphasize certain topics.
Standard Setting
Beyond helping to write the exam, SMEs help determine the cut score (passing score). Through carefully facilitated workshops using methods like Modified Angoff or Bookmark, they make judgments about what a minimally competent practitioner should know. This is where professional judgment meets statistical rigor with oversight from psychometricians.
Why SMEs Are Critical to Credentialing
Ensuring Exams Reflect Current Practice
Protocols change. Technology evolves. Regulations get updated. Laws are passed. SMEs keep certification exams current, ensuring they test what matters today, not what was relevant a decade ago.
Providing Real-World Context
Textbooks teach theory; SMEs know how things work in practice. They understand the nuances, the gray areas, the judgment calls that practitioners face every day. This context is invaluable in creating meaningful assessments.
Maintaining Credibility and Defensibility
When a credential is challenged, whether by a candidate who failed or in legal proceedings, having respected practitioners involved in every step of development provides both professional credibility and legal defensibility. SMES can provide the supporting evidence necessary for credentialing bodies to defend their assessment.
Protecting the Public
Ultimately, certification exists to protect the public by ensuring practitioners are competent. SMEs take this responsibility seriously, knowing that their decisions made about exam content directly impact public safety and professional standards.
Conclusion: The Impact of Great SMEs
Subject Matter Experts are the backbone of credible certification programs. They ensure that credentials truly mean something in the marketplace by grounding assessments in current, real-world practice. Working alongside psychometricians and credentialing staff, SMEs transform professional expertise into valid, defensible exams that protect the public and advance the profession.
When SMEs are valued and motivated, the entire profession benefits. Exams become meaningful measures of competency. Employers can trust the credential. Practitioners feel the certification process was fair and relevant. The public is protected by competent professionals.