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Hazard anticipation of young novice drivers - SWOV

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and the control group was significant and in the expected direction. In the<br />

other two near transfer situations in which a χ 2 could be applied, the<br />

difference in percentages between the SimRAPT group and the control group<br />

was small but also in the expected direction. In one near transfer situation<br />

(situation L) in which the χ 2 test could not be applied, the difference between<br />

the two groups was in the expected direction and substantial, OR = 7.08. In<br />

the other situation (situation N) which could not be tested, the difference was<br />

small and in the opposite direction. This latter situation (a blind curve with<br />

an intersection just after the curve and a warning sign ‘stop sign ahead’<br />

before the curve) was the only precursor <strong>of</strong> hazard scenario in the training.<br />

<strong>Hazard</strong> <strong>anticipation</strong> in this scenario not only means adequate visual search<br />

(gazes to the right side <strong>of</strong> the road in search <strong>of</strong> the expected stop sign), but<br />

also speed adaptation (driving into a blind curve). In this study, the<br />

dependent variable was gaze direction and not speed adaptation. Further<br />

analysis that includes speed adaptation is required.<br />

In two <strong>of</strong> the twelve far transfer situations the difference between the scores<br />

<strong>of</strong> the SimRAPT group and the control group was significant and in the<br />

expected direction. In one far transfer situations (E) the difference between<br />

the two groups was also substantial (OR = 10.8) and in the expected<br />

direction, but the assumption <strong>of</strong> the χ 2 test was not met. In seven far transfer<br />

situations the difference was in the expected direction but small and in two<br />

far transfer situations the difference was very small but in the opposite<br />

direction. The situations in the opposite direction were situation H (right<br />

turn at T-intersection) and situation M (Right merging fork). In situation H,<br />

the scores <strong>of</strong> both groups were relatively high and in situation M, both<br />

groups scored relatively low. It could be that H was a too easy test item to<br />

discriminate between the groups. Why the difference between the groups in<br />

situation M is in the unexpected direction, is not clear. In the very similar far<br />

transfer situation K (Merging fork from the left), the scores <strong>of</strong> the SimRAPT<br />

group were significantly better than the scores <strong>of</strong> the control group.<br />

6.3.3. Questionnaires<br />

Before and after the training (the simulator-based training for the SimRAPT<br />

group and the placebo pencil and paper training for the control group) and<br />

testing, participants were requested to rate their driving skills and abilities<br />

compared to <strong>drivers</strong> <strong>of</strong> the same age on a 5-point Likert scale (1 = much<br />

worse and 5 is much better). After the training and testing, participants in the<br />

SimRAPT-group still overestimated their skills (M = 3.88, SD = 0.72), but the<br />

overestimation was slightly less than before the training (M = 4.00, SD = 0.66).<br />

218

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