What is the effect of skid courses?

Short courses aimed at teaching skills such as getting out of a skid do not work or may even have a negative effect on road safety if they cause drivers to rely too much on their perceived skills. Courses that mainly focus on skidding prevention do not seem to have a negative effect, but drivers who have taken such a course do seem less inclined to avoid slipperiness [40] [41]; see also SWOV fact sheet Driver training and driving tests).