The LAFI, a simple, rhythm independent expression of atrial function, appears sensitive to differences between individuals in AF and those restored to SR and justifies clinical and investigative applications.
The utility of the Structured Interview of Reported Symptoms [SIRS; Rogers, R., Bagby, R. M., & Dickens, S. E. (1992). Structured Interview of Reported Symptoms professional manual. Odessa, FL: Psychological Assessment Resources], Improbable Failure Rate (IF) scale in pretrial (N=64) and clinical (N=153) samples was explored. Internal consistencies of the IF items were alpha=.81 and alpha=.92, respectively, with split-half reliabilities of .89 and .84, respectively. The IF scale loaded distinctly from the SIRS primary (psychosis) scales in principal components analysis, and the pattern of performances among clinical groups were as expected (e.g., normal controls outperformed patients with focal lesions and dementia, CHI patients outperformed dementia patients). Performance on the IF items was correlated with MMSE score (r=-.59, p
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