An IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores.A standard devation of 15 means 68% of the norm group has scored between 85 (100 â 15) and 115 (100 + 15).In other words, 68% of the norm group has a score within one standard deviation of the average (100).n IQ test score is calculated based on a norm group with an average score of 100 and a standard deviation of 15. The standard deviation is a measure of spread, in this case of IQ scores.
Report Abuse. David Man's (Dennis Weaver) car: 1971 Plymouth Valiant The Truck Driver (Cary Loftin): 1955 Peterbilt 281 Information: In the DVD documentary, Steven Spielberg observes that the fear of the unknown is perhaps the greatest fear of all and that Duel plays heavily to that fear.
On The Hunt For The Lost Car of the Movie âChristineâ. When it comes to car movies, Christine has a special distinction because people know the character more than the car. âOh, that car looks like Christine! What is it?â Unlike Vanishing Point, where everyone knows itâs a 1970 Challenger. But there was another interesting car in the movie, a 1968 Charger.