Each item scored on a 5 point scale (range 0-4) and measure of symptom severity is obtained by summing item scores. To obtain a measure of symptom severity, sum marked responses of the total and/or the respective sub-scales. Mean score: divide sum-score by respective number of scale items.
Laws aside, kids aren't ready to make the switch from a booster seat to seat belts until they're at least 4 feet 9 inches tall and can pass the five-step test below â typically between ages 8 and 10.
1 Infants and young children must ride in a child safety seat until they are 4 years old AND weigh at least 40 pounds. 2  Every child ages 4-8 who is no longer in a car seat must use a booster seat until she reaches 4â9â tall.