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GMAC Insurance National Driving Test

Methodology

GMAC Insurance conducted an online survey to test driving knowledge among the general population. The study was completed by TSN NFO. The survey was composed of two parts. First, a multiple choice test that simulated a standard written drivers test (not state specific). The second part was a test that evaluated knowledge of the rules of the road as well as behavioral responses to certain situations.

The sample was comprised of 4,900 total respondents. Inclusion criteria required licensed drivers, aged 16-65. The sample was split evenly between males and females. Furthermore, it included 100 respondents per state (excluding Alaska/Hawaii and including the District of Columbia). Respondents were part of an online panel.

To achieve a sample that reflected the actual US population distribution, data was weighted by state, age and gender.

Analysis was conducted across age groups, gender, ethnicities and state/geographical regions.