Security: An Essential Component of Validity
Are you concerned with the security of your assessments?
- Item harvesting?
- Collusion (students cheating off each other)?
- Undue influence (e.g., teacher help)?
- Brain dump sites?
- Preknowledge?
- Proctoring issues?
- Overexposure of items?
ASC is one of the world’s foremost providers of Test Security services. Our experts can help you determine potential pain points, or help work through ones you are already experiencing. Furthermore, our PhD psychometricians can implement sophisticated psychometric forensics to uncover issues that you never knew you had!
Types of Psychometric Forensics
INTRA-EXAMINEE
Is there anything unusual about this examinee unrelated to everyone else? Did they answer “C” to every item? Did they spend 10 minutes on each of the first 5 items and skip the rest? Did they get a high score in a suspiciously short time?
INTER-EXAMINEE
Is there anything unusual about this examinee compared to others? Are there nearby examinees that have almost the same response vector?
GROUP-LEVEL
Group-level analysis provides additional insight. Do certain schools or teachers do unusually well? Do certain test centers have crazy-high pass rates but short test times on average?
