Good psychometrics form the heart of any valid, reliable credentialing program which includes assessment. ProExam offers extensive psychometric consulting services, including:
- Reliability/Validity Analysis. We analyze exam results to determine the effect a different length exam would have on reliability and/or validity. When examination reliability statistics are low, we investigate possible causes and recommend ways to increase reliability.
- Cheating Analysis. We draw on statistical flags and other evidence to identify any groups of candidates whose results suggest possible cheating or collaboration in a single test administration or across a longer time frame.
- Differential Item Functioning Analysis. We determine if exam items are fair and appropriate across various ethnic and demographic groups and perform comparably across English and non-English forms.
- “Boot Camp.” We offer credentialing organizations an intensive orientation to psychometric principles and practices.