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The provision of a free computer and free Internet for a year may have influenced participants to be positive about the intervention |
Van Voorhees et al., (2005) |
14 late adolescents (ages 18–24) with at least one risk factor for developing depression (personal or family history of a depressive episode) were included. Assessments included Center for Epidemiologic Studies of Depression Scale (CES-D), Automatic Thoughts Questionnaire Revised (ATQ), and Social Support Questionnaire – Short Form, (SSQ-6) |
The intervention included an initial motivational interview in primary care, 11 Web-based modules based on CBT and IPT and a follow-up motivational interview in primary care to enhance behavior change |
Moderate effect sizes in depressive symptoms (0.43) and low effect sizes on the other two measures were noted (0.17–0.27) |
Small sample size |
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No active comparator |
Andersson, Hesser, Hummerdal, et al. (2013) |
3.5-year post-treatment follow-up of two versions of ICBT (Internet-delivered self-help vs. e-mail therapy) for mild to moderate depression on 51 participants. Assessed with the 21-item Beck Depression Inventory (BDI), 21-item Beck Anxiety Inventory (BAI), and the Quality of Life Inventory (QOLI) |
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The pre-treatment to 3.5-year follow-up within-group effect size was d = 1.7 for guided self-help and d = 1.5 for e-mail therapy on the BDI showing a sustained response. Mild improvements noted on QOLI |
Dropout rate was 42% |
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Not controlled for additional treatment |
Mohr et al. (2010) |
19 patients with depression (10 and above on the PHQ-8) received the “moodManager”, which was based on cognitive behavioral principles and consisted of six learning modules and four tools and was monitored by a coach. Assessed with the Hamilton Rating Scale for Depression (HRSD), Personal Health Questionnaire (PHQ-9), Perceived Barriers to Psychological Treatment (PBPT), GAD scale (GAD-7), Telephone Interview for Cognitive Status (TICS) and the 10 self-report items from the Positive Affect Scale of the Positive and Negative Affect Scale (PANAS) |
Learning modules (and associated tools) included the following: (1) “Getting Started”, which was an introduction to the basic principles of CBT; (2) “Monitoring Activities”, which described the relationship between activities and mood and introduced the “Activity Diary” tool, which allowed participants to track and rate daily activities; (3) “Scheduling Positive Activities”, which taught participants to use the “Activity Scheduler”, a tool used to plan and schedule positive activities; (4) “Identifying Thoughts”, which described the effects of thoughts on mood and taught participants to use the “Thought Diary” tool to monitor automatic thoughts; (5) “Challenging Thoughts”, which expanded the Thought Diary tool by teaching participants to develop alternative thoughts; (6) “Maintaining Gains”, which summarized the skills learned and encouraged participants to continue using the tools for relapse prevention |
Within-group effect size was high (1.34 for HRSD, 1.96 for PHQ 9, 1.70 for GAD-7) at the end point. |
No comparator group |
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Small sample |