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TitleAnalysis PlanIndividual vs SocietalAddition vs SubtractionStrategy
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Aknin et al., 2020Does spending money on others promote happiness?: A registered replication reportYesIndividualAdditionProsocial
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Allcott et al., 2020The Welfare Effects of Social MediaYesIndividualSubtractionTechnology
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Alzua et al, 2020Mental health effects of an old age pension: experimental evidence for Ekiti State in NigeriaYesSocietalAdditionMoney
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Andersen et al., 2022Material resources and well-being-Evidence from an Ethiopian housing lotteryYesSocietalAdditionMoney
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Barsasella, et al., 2021Effects of Virtual Reality Sessions on the Quality of Life, Happiness, and Functional Fitness among the Older People: A Randomized Controlled Trial from TaiwanNoTechnology
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Bekkers et al., 2019The Joy of Giving: Evidence from a Matching Experiment with Millionaires and the General Population YesIndividualProsocial
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Bell, et al., 2022A randomized, placebo-controlled trial investigating the acute and chronic benefits of American Ginseng (Cereboost (R)) on mood and cognition in healthy young adults, including in vitro investigation of gut microbiota changes as a possible mechanism of action NoDiet
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Coles et al., 2022Fact or artifact? Demand characteristics and participants beliefs can moderate but do not fully account for the effects of facial feedback on emotional experienceYesIndividualAdditionAct Happy
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Coles et al., in pressA multi-lab test of the facial feedback hypothesis by the Many Smiles CollaborationYesIndividualAdditionAct Happy
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Conner et al., 2017Let them eat fruit! The effect of fruit and vegetable consumption on psychological well-being in young adults: A randomized controlled trialYesIndividualAdditionDiet
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Cunha et al., 2021Positive psychology and gratitude interventions: A randomized clinical trialYesIndividualAdditionGratitude
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Deady et al., 2020Preventing depression using a smartphone app: A randomized controlled trialMultiple
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Dwyer et al., 2018Smartphone use undermines enjoyment of face to face social interactionsYesIndividualSubtractionTechnology
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Dwyer et al., 2022Wealth redistribution promotes happinessYesSocietalAdditionMoney
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Fritz et al., 2021Kindness and cellular aging: A pre-registered experiment testing the effects of prosocial behavior on telomere length and well-beingYesIndividualAdditionProsocial
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Ginty et al., 2017Omega-3 Supplementation and the Neural Correlates of Negative Affect and Impulsivity: A Double-Blind, Randomized, Placebo-Controlled Trial in Midlife AdultsNoDiet
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Goldfield et al., 2015Effects of Aerobic Training, Resistance Training, or Both on Psychological Health in Adolescents with Obesity: The HEARTY Randomized Controlled TrialNo
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Haushofer & Shapiro, 2016, 2018
The short-term impact of unconditional cash transfers to the poor: experimental evidence from Kenya; The long-term impact of unconditional cash transfers: experimental evidence from Kenya YesSocietalAdditionMoney
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Haushofer & Shapiro, 2016, 2018
The long term impact of unconditional cash transfers to the poor: experimental evidence from Kenya; The long-term impact of unconditional cash transfers: experimental evidence from Kenya YesSocietalAdditionMoney
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Haushofer et al, 2020aThe Comparative Impact of Cash Transfers and Psychotherapy on Psychological and Economic WellbeingYesSocietalAdditionMoney
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Haushofer et al, 2020bEconomic and psychological effects of health insurance and cash transfers: Evidence from a randomised experiment in KenyaYesSocietalAdditionMoney
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Heintzleman et al., 2020ENHANCE: Evidence for the efficacy of a comprehensive intervention program to promote subjective well-being.YesSocietalAdditionMultiple
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Hirshberg et al., 2022A randomized controlled trial of a smartphone-based well-being training in public school system employees during the COVID-19 pandemicYesIndividualAdditionMultiple
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Jacques-Hamilton et al., 2019Costs and benefits of acting extraverted: A randomized controlled trialYesIndividualAdditionSociability
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Jaroszewics et al., 2022
How effective is (more) money? Randomizing unconditional cash transfer amounts in the united statesYesSocietyAdditionMoney
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Johnson et al., 2020A Community Choir Intervention to Promote Well-Being Among Diverse Older Adults: Results From the Community of Voices TrialYesSocietalAddition
Community activities
Not included but deserves mention in table: they dont pre-register a detailed account of their positive affect variable.
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Kardas et al., 2021, Study 5
Keep Talking: (Mis)Understanding the Hedonic Trajectory of ConversationYesIndividualAdditionSociability
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Kean et al., 2015Chronic consumption of flavanone-rich orange juice is associated with cognitive benefits: an 8-wk, randomized, double-blind, placebo-controlled trial in healthy older adultsNo
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Keech & Hamilton, 2021Changing Stress Mindsets With a Novel Imagery Intervention: A Randomized Controlled TrialYesIndividualAdditionSilver linings
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Kim et al., 2022Prosocial spending encourages happiness: A replication of the only experiment reported in Dunn, Aknin, and Norton (2008)YesIndividual
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Kushlev & Dunn, 2019Smartphones distract parents from cultivating feelings of well-being when with their childrenYesIndividualSubtractionTechnology
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Kushlev et al., 2017Digitally connected, socially disconnected: The effects of relying on technology rather than other peopleYesIndividualSubtractionTechnology
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Kushlev et al., 2019Smartphones reduce smiles between strangersYesIndividualSubtractionTechnology
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Lindqvist et al., 2020Long-Run effect of lottery wealth on psychological well-beingYesSocietalAdditionMoney
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Markovic et al., 2020Effectiveness of Expressive Writing in the Reduction of Psychological Distress During the COVID-19 Pandemic: A Randomized Controlled TrialNo
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Martela & Ryan, 2021If giving money to the Red Cross increases well-being, does taking money from the Red Cross increase ill-being?-Evidence from three experimentsYesIndividualAdditionProsocial
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McIntosh & Zeitlin, 2020
Using household grants to benchmark the cost effectiveness of a USAID Workforce Readiness ProgramYesSocietalAdditionMoney
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Modrego-Alarcon et al., 2021Efficacy of a mindfulness-based programme with and without virtual reality support to reduce stress in university students: A randomized controlled trialNo
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Nelson-Coffey et al., 2021Practicing Other-Focused Kindness and Self-Focused Kindness Among Those at Risk for Mental Illness: Results of a Randomized Controlled TrialNo
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Nouchi, et al., 2020A Single 30 Minutes Bout of Combination Physical Exercises Improved Inhibition and Vigor-Mood in Middle-Aged and Older Females: Evidence From a Randomized Controlled TrialNo
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O'Brien & Kassirer, 2019People are slow to adapt to the warm glow of givingYesIndividualAdditionProsocial
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O'Brien & Smith, 2019 Study 3b
Unconventional Consumption Methods and Enjoying Things Consumed: Recapturing the “First-Time” ExperienceYesIndividualAddition
Injecting novelty
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O'Brien, 2021The "Next" Effect: When a Better Future Worsens the PresentYesIndividualSubtraction
Cogntive reframing
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Powell et al., 2013Effectiveness of a Web-Based Cognitive-Behavioral Tool to Improve Mental Well-Being in the General Population: Randomized Controlled Trial
Yes (but wrong measure)
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Rankin & Sweeny, 2021Preparing silver linings for a cloudy day: The consequences of preemptive benefit findingYesIndividualAdditionSilver linings
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Seppala, et al., 2020Promoting Mental Health and Psychological Thriving in University Students: A Randomized Controlled Trial of Three Well-Being InterventionsNo
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Sjåstad et al., 2020Greener grass our sour grapes? How people value future goals after failure (experiments 5 and 6 were pre-registered)YesIndividualSubtraction
Performance feedback and identification
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Varma & Hu, 2022Prosocial behaviour reduces unwanted intrusions of experimental traumatic memoriesYesIndividualAdditionProsocial
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Varma et al., 2022Prosocial behavior promotes positive emotion during the COVID-19 pandemic.YesIndividualAdditionProsocial
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Walsh et al., 2022, Study 2The role of actors, targets, and witnesses: Examining gratitude exchanges in a social contextYesIndividualAddition GratitudeGratitude
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Walsh et al., n.p.What is the Optimal Way to Give Thanks? Comparing the Effects of Gratitude Expressed Privately, One-to-One via Text, or Publicly on Social MediaYesIndividualAdditionGratitude
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West et al., 2021Happiness from treating the weekend like a vacationYesIndividualAddition
Injecting novelty
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Whillans & West, 2022Alleviating time poverty among the working poor: a pre-registered longitudinal field experimentYesIndividualSubtractionTime
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Whillans et al., 2017Does volunteering improve well-being?YesIndividualAdditionProsocial
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Whillans et al., 2017Buying time promotes happinessYesIndividualSubtractionTime
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