Psychometric properties of the 26-item eating attitudes test (EAT-26): an application of rasch analysis

Table 2 Summary of EAT-26 scale rating scale function

Category score	Counts used	Average measure	Outfit MNSQ	Category thresholds
1 (Never)	2791	− 1.40	0.98	None
2 (Rarely)	2003	− 0.74	0.94	− 0.74
3 (Sometimes)	2063	− 0.46	1.06	− 0.66
4 (Often)	840	− 0.16	1.08	0.60
5 (Usually)	682	0.04	1.13	0.19
6 (Always)	464	0.36	1.11	0.61

Average measure = a mean of logit measures in category; MNSQ = mean square residuals

ISSN: 2050-2974