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ERIC Number: EJ934769
Record Type: Journal
Publication Date: 2011-Sep
Pages: 14
Abstractor: As Provided
Reference Count: 38
ISSN: ISSN-0146-6216
Accuracy of Person-Fit Statistics: A Monte Carlo Study of the Influence of Aberrance Rates
St-Onge, Christina; Valois, Pierre; Abdous, Belkacem; Germain, Stephane
Applied Psychological Measurement, v35 n6 p419-432 Sep 2011
Using a Monte Carlo experimental design, this research examined the relationship between answer patterns' aberrance rates and person-fit statistics (PFS) accuracy. It was observed that as the aberrance rate increased, the detection rates of PFS also increased until, in some situations, a peak was reached and then the detection rates of PFS decreased with increases in aberrance rates. Furthermore, the results suggest that "ECI2[subscript Z]" was somewhat more robust to high levels of aberrance than "l[subscript z]," "H[superscript T]," and "U3" when "cheating" was simulated. The results of this study shed light on a limitation of PFS analysis. (Contains 1 note and 8 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A