Many patients are offered written self-help material as a stage 1 (low intensity) intervention for anxiety and/or depression, as recommended by the United Kingdom's National Institute for Clinical Excellence's pathways framework (http://pathways.nice.org.uk/).~Acceptance and Commitment Therapy (ACT) is an emerging therapy that has been shown to help patients with mild to moderate anxiety and/or depression in therapist-led individual and group treatments. However, few studies have shown how effective ACT is in the form of a low-intensity, guided self-help intervention.~This study seeks to find out whether an ACT-based manual, sent to patients with anxiety and/or depression, increases their ability to effectively manage their difficulties and improve their quality of life. Participants on a primary care mental health waiting list will be invited to take part in this study.~Eligible participants will be randomly allocated to one of two groups: the ACT intervention or waiting list as usual. Participants receiving the ACT intervention will be posted a manual and will be asked to read a chapter each week for six weeks. A member of the research team will also phone them on two occasions to support their use of the manual, trouble shoot any difficulties and provide encouragement. All participants will be asked to complete nine, short questionnaires sent through the post prior to and after six weeks of self-help.~By comparing the results the study will demonstrate whether the ACT intervention is effective compared to wait list as usual.
This study aims to evaluate the effectiveness of a guided self-help intervention using Acceptance and Commitment Therapy (ACT). Half of the participants will receive the self-help manual whilst on a waiting list for individual therapy, while the other half will remain on a waiting list and not receive the manual. This study is looking specifically at individuals with mild to moderate anxiety and/or depression.