Findings on happiness in Bakker et al. (2020): study NL 2011

Publication
Author(s)Bakker, A.B.; Burger, M.; Oerlemans, W.; VanHaren, P.; Veenhoven, R.
TitleRaise of Happiness Following Raised Awareness of How Happy One Feels: A Follow-Up of Repeated Users of the Happiness Indicator Website
SourceInternational Journal of Applied Positive Psychology, 2020, online,
URLhttps://doi.org/10.1007/s41042-020-00032-w
Investigation
PublicReturning users of a happiness self-help website, Netherlands, 2011-2015
 User of the GeluksWijzer website: www.gelukswijzer.nl
Last assesment2015
Survey nameNL-GeluksWijzer
SampleNon-probability self-selected
 Participants were recruited using publicity in public media and social media campains. This study limits to participants who had visited the website at least twice and had used the HappinessDiary Overrepresentation of higher educated women
Respondents N =5411
Non ResponseNot available
AssesmentQuestionnaire: web
 Happiness self-help tool box
Happiness measure(s) used
Full textSelfreport 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 smily No verbal labels are used Preceded by the question 'How happy do you feel today?' (Both for focussing on affect and for avoiding mood bias)
ClassificationA-AOL-cm-sq-f-11-a
Author's labelhappiness
Page in publication9
RemarksEstimate of how happy one had felt over the last month Feeling of happiness 'today': M = 6,70 SD = 1,37
Finding used in
nation ranks		Yes
 On original range 0 - 10On range 0 - 10
Mean6.37
Standard deviation1.57

Correlational findings

Author's labelSubject Code
Finding		Subject description
Use of Happiness-ComparerH04ab02Actual changes in happiness
Use of Happiness-ComparerH16ad03cComparison with the happiness of similar people, also classified as above ↑
Use of Happiness-ComparerH16ae02bInsight, also classified as above ↑
Use of Happiness-ComparerH16ad03jbMood awareness training, also classified as above ↑
Use of Happiness-ComparerH16ae03bMultiple treatment moments, also classified as above ↑
Use of Happiness-ComparerH16ae06dNo particular setting, recruitment on interest, also classified as above ↑
Use of Happiness-ComparerH16ae01bcOnline intervention, also classified as above ↑
Use of Happiness-ComparerH16ae01bSelf-help, also classified as above ↑
Use of Happiness-ComparerH16ae05dVoluntary, unsolicited, also classified as above ↑
Use of Happiness-DiaryH16ae02aExercise
Use of Happiness-DiaryH16af02bFrequency of use, also classified as above ↑
Use of Happiness-DiaryH16ae02aaHappiness diary, also classified as above ↑
Use of Happiness-DiaryH16ad03jbMood awareness training, also classified as above ↑
Use of Happiness-DiaryH16ae03bMultiple treatment moments, also classified as above ↑
Use of Happiness-DiaryH16ae06dNo particular setting, recruitment on interest, also classified as above ↑
Use of Happiness-DiaryH16ae01bcOnline intervention, also classified as above ↑
Use of Happiness-DiaryH16ae01bSelf-help, also classified as above ↑
Use of Happiness-DiaryH16ae05dVoluntary, unsolicited, also classified as above ↑