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Studies

Bakker et al. (2020): study NL 2011

Publication

Author(s):
Bakker, A.B.; Burger, M.; Oerlemans, W.; VanHaren, P.; Veenhoven, R.
Title:
Raise of Happiness Following Raised Awareness of How Happy One Feels: A Follow-Up of Repeated Users of the Happiness Indicator Website
Source:
International Journal of Applied Positive Psychology, 2020, online,

Investigation

Public:
Returning users of a happiness self-help website, Netherlands, 2011-2015
Survey name:
NL-GeluksWijzer
Sample:
Non-probability self-selected
Respondents:
N = 5411
Non Response:
Assessment:
Questionnaire: web
Happiness self-help tool box

Happiness Measure(s) and Distributional Findings

Full text:
Self report on single question:

How happy have you felt during the last month?
0
1
2
3
4
5
6
7
8
9
10
All response options indicated by both a number and a smiley
No verbal labels are used

Preceded by the question 'How happy do you feel today?' (Both for focusing on affect and for avoiding mood bias)
Classification:
A-AOL-cm-sq-f-11-a
Author's label:
happiness
Remarks:
Estimate of how happy one had felt over the last month
Feeling of happiness 'today': M = 6,70 SD = 1,37
Page in publication:
9
Observed distribution
Summary Statistics
On original range 0 - 10 On range 0-10
Mean:
6.37 6.37
SD:
1.57 1.57

Correlational Findings

Author's label Subject Description Finding Use of Happiness-Comparer Actual changes in happiness
Self-help
Mood awareness training
No particular setting, recruitment on interest
Voluntary, unsolicited
Comparison with the happiness of similar people
Online intervention
Insight
Multiple treatment moments
Use of Happiness-Diary Frequency of use
Self-help
Mood awareness training
Exercise
No particular setting, recruitment on interest
Happiness diary
Voluntary, unsolicited
Online intervention
Multiple treatment moments