Our Services

Quadterion offers a full range of services for creating and implementing a credentialing exam and program.

An overview of the many advantages of our robust and comprehensive service offering can be found on our Process page.

Practice/Job Task Analysis

Unlock Your Certification Potential

At Quadterion, we help you define the core competencies necessary for your profession through tailored practice/job task analysis studies. Our collaborative approach engages your team and subject matter experts to create a robust blueprint for exam development and ongoing competency assessments. As the cornerstone for content validity, we ensure your certification program reflects the most relevant knowledge and skills by employing scientifically valid data collection and survey methods to reflect the most relevant knowledge and skills.

Exam Development

Craft Industry-Leading Exams 

Partner with Quadterion for end-to-end exam development services. Our expert team aligns content with the knowledge, skills and abilities required in your field. We provide comprehensive support from item writing to testing administration strategies, focusing on compliance with NCCA and ISO 17024 accreditation standards. Benefit from ongoing reliability and decision consistency analyses to refine your exam’s effectiveness, empowering you to deliver valid assessments.

At Quadterion, we understand that the stakes of standardized exams are high. Our comprehensive Exam Form and Item Analysis services ensure that your assessments are not only reliable but also fair and valid. We rigorously evaluate each question’s alignment with the necessary knowledge and skills.

Item Development and Form Assembly

Build a Strong Exam Foundation

Our guided item writer workshops equip your team with the skills to create valid and reliable exam items. Through collaborative training and structured workflows, we ensure your item development process is efficient and effective. We rigorously evaluate each question’s alignment with the necessary knowledge and skills. Our post-administration analyses provide insights into item performance, helping you maintain high psychometric standards and enhance exam quality. We are familiar with the construction of all item types, including technology-enhanced items and performance items.

Psychometric Services

Demonstrate Validity with Confidence 

Quadterion’s psychometric services include detailed documentation and reporting, ensuring your certification program meets rigorous accreditation standards. Our approach focuses on constructing the strongest validity argument for your accreditation needs. We collaborate with our clients to provide thorough evidence for their accreditation needs to construct the strongest validity argument for the program. With regular reports and a consultative approach, we help you continuously improve your certification processes.

Our psychometric analysis dives deep into item statistics, ensuring that every question contributes meaningfully to your exam’s objectives. We provide practical guidance that ranges from the content representation to the impact on score precision, helping you understand the tradeoffs of the necessary measurement decisions needed to create a fair and valid testing program.

We also conduct various reliability studies to confirm that your exam consistently and accurately measures competency, utilizing methods tailored to your scoring model. Our expertise ensures that decisions about candidate certification are based on solid, defensible data.

Standard Setting

Establish Reliable Passing Standards 

Our expertise in criterion-referenced methods helps you set fair and defensible passing scores. Using established techniques such as the Angoff Method or Bookmark method we guide you through the standard-setting process, ensuring that your certification decisions are backed by robust data and aligned to protect the public interest of a competent practitioner.

Equating & Scaling of Scores

Ensure Score Comparability Across Exam Forms 

Quadterion implements rigorous equating procedures to maintain comparability across different versions of your exam. Various methods can be employed depending on the needs of your program. For smaller programs, classical techniques like linear equating methods or for larger programs item response theory methods ensure that candidates receive comparable scores, regardless of the exam form, or administration mode they encounter, enhancing fairness and reliability in certification outcomes.