Correlational findings

Study Parks (2009): study US Philadelphia, Pennsylvania 2004

Participants in a happiness training and controls, followed 1 year, Philadelphia, USA, 2004
Survey name
Unnamed study
N = 37
Non Response
Questionnaire: Conputer Assisted Web Interview (CAWI)
Participants completed web-based assessments before and after the 6-week intervention period, as well as 3-months, 6-months, and 1 year after post. Upon completion of the post-assessment, participants received $100 in compensation. They received $50 for each subsequent follow-up completed. During 6 weeks participants in the intervention group completed exercises in Positive Psycho Therapy (PPT). The final session focused on maintenance personalization. The control group did not participate in PPT. Both groups completed the questionnaires at baseline (T1), after 6 weeks (T2), after 3 months (T3), after 6 months (T4) and after 1 year (T5).


Authors's Label
Positive psychotherapy training
Our Classification
Related specification variables
Students were randomly assigned to either:

1.INTERVENTION GROUP: Participants attended a total of 6 weekly sessions, of 1.5 hours each. Each session, participants completed homework exercises during the week, then returned to the group with a completed worksheet outlining what they did. Facilitators discouraged participants from altering the exercises until the final session, during which the group generated modifications that would make each exercise more personally relevant to them.
Each session was evenly split between 1) discussion of the previous week’s homework and 2) a lecture-style introduction to the next week’s exercise, including instructions for how to do the exercise. The final session focused on maintenance and customizing the exercises for each participant in order to promote maintenance after termination.
Week 1: Finding and promoting personal strengths in daily life.
Week 2: Writing down 3 good things that happened.
Week 3: Making a summary of your fruitful and satisfying life after dying.
Week 4: Writing a gratitude letter to someone to whom you are grateful.
Week 5: React to someone in a positive and constructive way, at least once a day.
Week 6: Savoring: take the time each day to enjoy something that you usually hurry through. And report about it and report your feelings.

0. CONTROL GROUP:Only completed the questionnaires at the same time as the intervention group:

Observed Relation with Happiness

Happiness Measure Statistics Elaboration / Remarks O-Sum-u-mq-v-7-a DM = + p < .01               Happiness LEVEL at        CHANGE
              T1   T2   T3   T4   T5    T5-T1
Intervention  17.9 20.3 23.8 23.6 25.3  +7,4
Controls      18.5 18.9 21.8 21.2 23.4  +4,9
- difference  -0.6 +1.4 +2.0 +2.4 +1.9  +2,5

T1: baseline before interevention
T2: after intervention (6 weeks)
T3: follow-up after 3 months
T4: follow-up after 6 months
T5: follow-up after 1 year.
O-Sum-u-mq-v-7-a D% = + p < .01                          CHANGE         CHANGE
                         T2-T1          T5-T1
Intervention             +10,0%         + 30,8%
Controls                 + 1,7%         + 20,4%
- difference             + 8,3%         + 10,4%

scale range 4-28