@article{ref1,
title="The effectiveness of official action taken against problem drivers: A five-year follow-up",
journal="Journal of safety research",
year="1974",
author="Schuster, D. H.",
volume="6",
number="4",
pages="171-176",
abstract="This study evaluated the effectiveness of official action such as suspension or probation taken against problem drivers.  Official action was manipulated randomly up or down one level from the normal course of action selected at the end of a one-hour driver improvement interview.  Drivers arbitrarily given more-than-normal action at the interview had consistently, but in significantly, more subsequent moving violations than did drivers with normal- or less-than-normal action.  Drivers given less-than-normal action at the interview, however, had significantly more driving accidents subsequently then did drivers with normal or more-than-normal action.  A significant interaction with previous official action complicated the second finding: drivers with previous suspension, but less-than-normal action at the interview, had more accidents later than it given normal or more than normal interview action.  Thus, official departmental action affects later driving accidents, but has little effect on moving violations.  Further, official action should be progressively more severe if a problem driver doesn't improve.<p />",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}