<qa>  What is the one-session treatment group directly exposed to?Participants are randomly assigned to 1 of 3 groups: a one-session treatment group, an educationsupport group, and a waitlist control group. The one-session treatment group is directly exposed to a phobia object or situation during a 3-hour treatment session. In the educationsupport group, children are given information about fear and phobias and are taught how to deal with them through workbook activities. Children who participate in the one-session treatment group or the educationsupport group are assessed 1 week post-treatment and again after 6 months. Participants with improved symptoms have a 1-year follow-up. Participants with phobias that persist at 6 months are encouraged to participate in alternative treatment. Waitlist control participants are assessed pre-treatment and 1 month post-treatment. Those who continue to have phobias at the 1-month assessment are randomly assigned to 1 of the 2 active treatments. 