Qualitative analysis of the Best Possible Self intervention: Underlying mechanisms that influence its efficacy

Alba Carrillo, Marian Martínez-Sanchis, Ernestina Etchemendy and Rosa M Baños

PLOS ONE, 2019, vol. 14, issue 5, 1-15

Abstract: Background: The Best Possible Self is a Positive Psychology Intervention which asks participants to write down about themselves in their best possible future. Previous studies have shown its efficacy to enhance wellbeing, but the mechanisms that underlie its efficacy are still unknown. Objective: The aim of this study was to analyze the content of the essays of the BPS intervention and to examine how this content was related to the efficacy of the intervention to increase positive affect. Method: Participants (N = 78) were randomized to either the Best Possible Self condition, or one of two variants of the intervention: one’s best self in the present, and one’s best self in the past. Qualitative analyses of the texts were carried out to explore the main themes and features of the essays. Then, a mixed-methods approach with quantitative and qualitative data was followed, in order to analyze the relationship between the content of the texts and the change in positive affect produced by the interventions. Results: Significant differences between conditions were found in the content of the compositions. Regression analyses showed that different variables predicted the change in positive affect depending on the condition. Mediation analyses also found differences among conditions. Conclusions: These findings suggest that these interventions respond to different underlying mechanisms which influence their efficacy. This study contributed to a better understanding of how Positive Psychology Interventions work, and how to increment their efficacy.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0216896

DOI: 10.1371/journal.pone.0216896

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