Psychotherapy, and more specifically cognitive-behavioral therapy and systematic desensitization, has also been found to reduce anxiety symptoms. Two randomized experimental studies of adolescents have been conducted examining the impact of systematic desensitization on youth phobias. In one, Kondas (1967) randomly assigned 23 youth (11 to 15 years old) who were assessed as having a social phobia to one of four groups: imaginal systematic desensitization (i.e., the youth picture the fearful situation), presentation of fearful situation without being paired with relaxation training, relaxation training, or a no-treatment control. From the results, Kondas concluded that imaginal systematic desensitization was superior to the other treatments and to the no-treatment control. In another study, 67 youth (six to 15 years old) presenting with a diversity of phobias were randomly assigned either to a standard systematic desensitization group (i.e., presented with the actual feared object or situation), generic psychotherapy group, or a wait-list control group (Miller, Barrett, Hampe & Noble, 1972). Participants from both treatments significantly improved compared to the control group, but there was no difference between the treatments. Considering the multitude of specific and social phobias, two studies probably do not capture whether systematic desensitization is an effective treatment approach. More research is needed on a more diverse set of phobias.