No after-the-fact statistical analysis of examinee test scores can overcome the negative impact of poor items on the quality of domain-referenced interpretations. (Brennan, 1981, p.10).
Brennan, R. L. (1981). Some statistical procedures for domain-referenced testing: a handbook for practitioners. Iowa City, Iowa: Research and Development Division, American College Testing Program,. Retrieved from https://searchworks.stanford.edu/view/1312930
Jiahui Zhang 