Insurance companies and government agencies can reduce risk and protect the public interest by ensuring that workers are knowledgable and competent to perform their tasks. To reach this goal, they often require that workers complete a specified training course.
In fact, however, requiring a training course cannot ensure that workers are knowledgeable and competent, because this method does not provide a reliable means of verification. The only way to ensure that individuals are properly trained is to require a credible certification.
Course completion certificates (often erroneously called “certifications” by the course providers who issue them) have long been used by insurers and government agencies for this purpose. However, these credentials cannot provide verifiable proof of knowledge and experience. Regardless of the quality of a training course, the completion certificate is nothing more than a receipt for fees. It tells interested parties exactly nothing about the actual knowledge and experience of the worker.
This is because a course completion certificates fail to provide any of the three components of credibility:
Completion certificates are issued by the course provider, whose interest in seeing students pass the course represents a conflict of interest.
Completion certificates assert that students have mastered a curriculum, but the content of this curriculum is often unverifiable. The certificate does not help insurers determine whether content domains have been developed by appropriate experts, whether they are relevant, up to date, and comprehensive, and whether the course covers these domains effectively.
Completion certificates rely on a standard of competency (the examination) that is unverifiable. The certificate does not help agencies determine whether the test represents relevant knowledge, whether it is appropriately difficult, whether it has been graded fairly, or whether its results are reliable, valid, and repeatable. Without psychometric support, an examination (and the certificate that accompanies it) is useless as an index of knowledge.
The only reliable measure of knowledge, competency and experience – and therefore the only means of ensuring that personnel are qualified – is an accredited third-party certification.
Accredited certifications are those credentials which provide all three components of credibility: third party verification, content validity, and psychometric support.
Accredited credentials are issued by non-profit certifying bodies that maintain complete independence from the training process. Such bodies conduct no training courses and have no contracts with any course provider. Their certifications are board-awarded by unanimous vote of a nationwide panel of industry peers, which includes no course providers, and are therefore free from all conflicts of interest.
Accredited credentials are developed using procedures published by the American National Standards Institute (ANSI), the National Commission for Certifying Agencies (NCCA), or the Council of Engineering and Scientific Specialty Boards (CESB). These include the development of a formal Job/Task Analysis, the proper vetting of subject matter experts, the mapping of content domains to an examination blueprint, the use of standard industry publications, and the role of verified field experience in the certification process. A certifying body’s compliance with these procedures is documented and verified by independent third parties, and is a matter of record.
Accredited certification examinations are developed and administered according to strict psychometric principles as required by the accreditation bodies listed above. These ensure that exam results are reliable as an index of knowledge. In particular:
• Exam content validity
Formal content validity scales employed by properly vetted subject matter experts ensure that content domains reflect current knowledge of the structural drying and water damage restoration industry.
• Internal consistency reliability
Statistics from each administration of the exam are compiled using the Kuder-Richardson Formula #20 (KR20) to determine how well the exam reflects the body of knowledge and content domains.
• Item discrimination reliability
Statistics from each administration of the exam are compiled using a point-biserial correlation analysis to determine how well individual exam items perform as discriminators – that is, how effectively they distinguish between qualified and unqualified candidates.
• Cut score specification
The passing score for the examination is set using the Modified Angoff method, a statistically defensible procedure that employs the knowledge of subject matter experts in a documented standard-setting survey.
Psychometric processes such as these ensure that accredited exams deliver valid, reliable, fair and repeatable results, and that they consistently represent an effective index of relevant knowledge.
Because accredited certifications provide all three components of credibility, they are the only reliable testimony of a certificant’s knowledge and experience.
Requiring a credible certification is the most efficient means of ensuring that personnel are properly trained. Insurance companies and other agencies that simply require training have done nothing more than state the problem; those that require third-party certification also implement a solution.
Adam Andrews is the director of operations for the American Council for Accredited Certification. ACAC is an independent non-profit certifying body serving the environmental industry since 1993. ACAC maintains third-party accredited certifications in structural drying, microbial investigation, and related fields throughout North American and overseas. More information about ACAC certifications can be found at www.acac.org