JAFROC analysis is intended for analysis of human observer free-response data (Chakraborty et al. 2004).
JAFROC has been extensively validated using a simulator that included inter-image and intra-image correlations of the ratings (Chakraborty et al. 2004). In JAFROC analysis when a case is jackknifed all mark-ratings on the case are removed from the analysis and each case yields one pseudovalue.
No assumptions regarding the correlations are made (however, ANOVA assumes the pseudo-values are independent and normally distributed, see below). The simulation testing confirmed that the method had the correct NH behavior even in the presence of strong intra-image correlations.
In JAFROC the NL marks on abnormal images and all excepting the highest rated NL mark or normal images are not used in the figure of merit calculation. If the highest rated NL marks on abnormal images were included - this method, when used with the jackknife for significance testing, was termed JAFROC-1 in (Chakraborty et al. 2004) - higher statistical power should be achievable.