Efficacy of Different Versions of the Best Possible Self Intervention

Study Overview
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Brief Summary
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The aim of this study is to analyze the efficacy of several variations of an already validated Positive Psychology Intervention (PPI) called Best Possible Self, using Information and Communication Technologies (ICT) in general population. Participants are randomly assigned to one of 4 conditions: BPS PAST condition, BPS PRESENT condition, BPS FUTURE condition, and CONTROL condition (daily activities).

Detailed Description
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Intervention lasts 7 days. Participants come to the laboratory the first day, they fill up assessment questionnaires and practice the assigned exercise. Then, they practice the assigned exercise for 6 more days at home. The main hypothesis is that all three experimental conditions will enhance wellbeing comparing to the control condition.

Official Title
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Efficacy of Different Versions of the Best Possible Self Intervention: a Randomized Controlled Trial

Conditions
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General Population

Intervention / Treatment
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* Behavioral: BPS PAST
* Behavioral: BPS PRESENT
* Behavioral: BPS FUTURE
* Behavioral: CONTROL


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participants must be 18 years old or older. Participants must be willing to participate in the study. Participants must have computer with Internet access and e-mail address. Exclusion Criteria: To suffer from moderated or severe depression as established by a score of 20 or more in the Beck Inventory of Depression (BDI-II; Beck, 1996).

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 100 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: BPS PAST<br>Participants write down about themselves in a past when they displayed their best self. Then, they make a video with this text and a chosen song, watch the video and then they visualize (imagine) the content. | Behavioral: BPS PAST<br> <br> |
| Experimental: BPS PRESENT<br>Participants write down about themselves in in the present, focusing on what currently makes the best version of themselves (skills, features...). Then, they make a video with this text and a chosen song, watch the video and then they visualize (imagine) the content. | Behavioral: BPS PRESENT<br> <br> |
| Experimental: BPS FUTURE<br>Participants write down about themselves in the future after everything has gone as well as it possibly could. Then, they make a video with this text and a chosen song, watch the video and then they visualize (imagine) the content. This is the original BPS exercise (already validated in other studies). | Behavioral: BPS FUTURE<br> <br> |
| Active Comparator: CONTROL<br>Participants write down the activities they did during the last 24 hours. Then, they visualize (imagine) the content. They practice the visualization exercise for 7 consecutive days. | Behavioral: CONTROL<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from Positive and Negative Affect Scale (PANAS; Watson, Clark & Tellegen, 1988; Sandín et al., 1999) from baseline to post-in |  | Change from pre-intervention to post-intervention (1 week) and follow-up (1 month, 3 months). | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| New General Self-Efficacy Scale (NGSES; Chen, Gully & Eden, 2001) |  | Change from pre-intervention to post-intervention (1 week) and follow-up (1 month, 3 months). | 
| Life Orientation Test (LOT-R; Otero, Luengo, Romero Gómez & Castro, 1998; Scheier, Carver & Bridges, 1994). |  | Change from pre-intervention to post-intervention (1 week) and follow-up (1 month, 3 months). | 
| Fordyce Happiness Scale (Fordyce, 1988) |  | Change from pre-intervention to post-intervention (1 week) and follow-up (1 month, 3 months). | 
| Temporal Satisfaction with Life Scale (TSWLS; Pavot, Diener & Suh, 1998) |  | Change from pre-intervention to post-intervention (1 week) and follow-up (1 month, 3 months). | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Best Possible Self, Positive Intervention, Optimism