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The effects of a commercial multimedia self-help program (Attacking Anxiety) were evaluated by examining the outcome of 176 individuals who participated in the treatment. Results suggested that 62 individuals suffering from anxiety achieved clinically significant improvement. An additional 40 achieved reliable change, despite the fact that these individuals had suffered from anxiety-based problems for years prior to their participation. Only one participant experienced negative change. These results are discussed in relation to the growing literature on self-help interventions and the limitations imposed by the naturalistic nature of the investigation.
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Finch et al. (2000) studied this question.
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