Motor vehicle crash involvement and moving violations: Convergence of self-report and archival data

In the crash involvement literature, it is generally assumed that archival and other "objective" criterion data are superior to self-reports of crash involvement. Using 394 participants (mean age = 36.23 years), the present s tudy assessed the convergence of archival and self-report measures of motor vehicle crash involvement and moving violations. We also sought to determi ne whether predictor/criterion relationships would vary as a function of cr iterion type (i.e., archival vs, self-report), and if a combination of both criteria would result in better prediction than would either by itself. Th e degree of agreement between the two criterion sources was low, with parti cipants self-reporting more crashes and tickets than were found in their st ate records. Different predictor/criterion relationships were also found fo r the two criterion types; stronger effects were obtained for self-report d ata. Combining the two criteria did not result in relationships stronger th an those obtained for self-reports alone. Our findings suggest that self-re port data are not inherently inferior to archival data and, furthermore, th at the two sources of data cannot be used interchangeably. Actual or potent ial applications include choosing the appropriate criterion to use, which, as the finding of this study reveals, may depend on the purpose of the inve stigation.