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Table 1 Characteristics of the included studies

From: The effectiveness of self help technologies for emotional problems in adolescents: a systematic review

Study Study design Target population and outcomes N Age Sex Follow up (weeks) Attrition QRS score
Ackerson [54] RCT Adolescents with elevated depression symptoms (10+ on the Child Depression Inventory and 10+ on the Hamilton Rating Scale for Depression) 22 Mean 15 years and 11 months M: 36% 4 weeks follow up 26.6% 21
Allen [65] Quasi-experiment Students with test anxiety 84 17–21 M: 25% 7 weeks 24% 14
Buglione [55] Quasi-experiment Students with test anxiety (scoring above the 60th percentile on the Test Anxiety Inventory) 50 18–22 M: 58% Post treatment, but minimum of 6 weeks 28% 17
Denny [62] Quasi-experiment Students with spider fear (scoring in the upper 20th percentile of a spider fear inventory and failing a behavioural avoidance test) 70 18–21 M: 10% Not clear (week following last therapy session) Not clear 13
Grossman [58] RCT Male students with dating anxiety 50 18–21 M: 100% 4 weeks and 8 months follow up 8% 18
Lenkowsky [60] Quasi-experiment Self concept in students with learning disability and emotional handicap 96 12–14 M: 83% Not clear (post treatment) Not clear 11
O'Kearney [56] Quasi-experiment Students with depression symptoms 78 15–16 M: 100% 8–10 weeks and 16 weeks follow up 41% 23
Ramsey [63] Quasi-experiment Stress management training in students 132 18 – 23+ M: 47% 4 weeks and 4 weeks follow up 12% 16
Register [57] RCT Students with test anxiety (meeting Test Anxiety Inventory criterion cut off score of 50) 121 Mean 18.6 M: 31% Treatment completion, 4 week follow up 8% 16
Robinson [66] RCT Health behaviour change in graduate and undergraduate students 952 18–25 Not clear 16 weeks 23% 16
Salt [59] Quasi-experiment Self esteem and locus of control in high school students 121 14–17 M: 46% 2 weeks 13% 12
Sandor [37] RCT Problem solving in adolescents living with single parent mothers who had been separated or divorced from fathers for approximately 6–48 months 100 13 – 17 M: 37% 4 weeks post intervention and 4 weeks follow up 3% 24
Sheridan [61] RCT Prevention of problems in youth of changing families 48 13–15 M: 48% Not clear Not clear 13
Walker [64] Quasi-experiment Competence building in adolescents in church youth and schools 139 13–18 M: 40% 2 months 22% 15
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