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Short-Term Economic Effects of Psychological Affirmation and Goal-Setting Interventions
Last registered on September 29, 2016

Pre-Trial

Trial Information
General Information
Title
Short-Term Economic Effects of Psychological Affirmation and Goal-Setting Interventions
RCT ID
AEARCTR-0000991
Initial registration date
January 14, 2016
Last updated
September 29, 2016 1:29 PM EDT
Location(s)
Region
Primary Investigator
Affiliation
University of Oxford
Other Primary Investigator(s)
PI Affiliation
University of Oxford
PI Affiliation
University of Oxford
PI Affiliation
Princeton University
PI Affiliation
Duke University
Additional Trial Information
Status
Completed
Start date
2015-07-01
End date
2016-06-01
Secondary IDs
Abstract
This document describes analyses we plan to conduct on the data from a randomized controlled trial in southwestern Kenya conducted in 2015–2016. In this trial, we test if either or both of two social psychological interventions can affect psychological and economic outcomes over a two-month period and if the effects of interventions differ if they are delivered individually or in randomly assigned groups.
External Link(s)
Registration Citation
Citation
Dercon, Stefan et al. 2016. "Short-Term Economic Effects of Psychological Affirmation and Goal-Setting Interventions." AEA RCT Registry. September 29. https://doi.org/10.1257/rct.991-6.0
Former Citation
Dercon, Stefan et al. 2016. "Short-Term Economic Effects of Psychological Affirmation and Goal-Setting Interventions." AEA RCT Registry. September 29. https://www.socialscienceregistry.org/trials/991/history/10938
Sponsors & Partners

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Experimental Details
Interventions
Intervention(s)
(1) A pure control group is not being surveyed until the endline

Three interventions are being delivered:
(2) A self-affirmation intervention involving two videos plus an exercise
(3) An aspirational intervention involving two videos plus an exercise
(4) A placebo intervention involving two videos plus an exercise that includes information from the other videos, but excludes what are presumed to be the active (self-affirmation or aspiration) ingredients

See pre-analysis plan for details

Arms 2,3, and 4 are cross-cut with individual (A) versus group (B) treatment delivery



Intervention Start Date
2015-11-09
Intervention End Date
2016-03-31
Primary Outcomes
Primary Outcomes (end points)
We define a set of eight primary measures of interest, including two directly measured outcomes and six indices constructed from multiple outcomes. The indices are:
- self-concept (index)
- aspirations, hope and optimism (index)
- stress and depression (index)
- education (index)
- labor supply (focal outcome)
- consumption-related expenditure (focal outcome)
- income from production (index)
- investment-oriented behavior index

These are constructed and analysed as detailed in the attached pre-analysis plan.
Primary Outcomes (explanation)
See attached pre-analysis plan
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
1.Pure control
2A.Self-affirmations, individual
2B.Self-affirmations, group
3A.Aspirations, individual
3B.Aspirations, group
4A.Placebo, individual
4B.Placebo, group

See pre-analysis plan for details
Experimental Design Details
Randomization Method
Computer, stratified random assignment, see pre-analysis plan for details
Randomization Unit
Village level
Was the treatment clustered?
Yes
Experiment Characteristics
Sample size: planned number of clusters
144 (treatment arms plus placebo) plus 16 (pure control)
Sample size: planned number of observations
3385 households
Sample size (or number of clusters) by treatment arms
1.Pure control: 16 villages x 35 subjects = 560. no baseline. successfully endlined: 529.
2A.Self-affirmations, individual: offered: 24 villages x 30 subjects = 720. successfully baselined: 574. successfully endlined: 530.
2B.Self-affirmations, group: offered: 24 villages x 30 subjects = 720. successfully baselined: 630. successfully endlined: 548.
3A.Aspirations, individual: offered: 24 villages x 30 subjects = 720. successfully baselined: 610. successfully endlined: 560.
3B.Aspirations, group: offered: 24 villages x 30 subjects = 720. successfully baselined: 633. successfully endlined: 592.
4A.Placebo, individual: offered: 24 villages x 30 subjects = 720. successfully baselined: 570
4B.Placebo, group: offered: 24 villages x 30 subjects = 720. successfully baselined: 622
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Princeton University Institutional Review Board For Human Subjects, Office of Research Integrity and Assurance
IRB Approval Date
2016-06-03
IRB Approval Number
0000006800
IRB Name
Maseno University Ethics Review Committee
IRB Approval Date
2015-09-25
IRB Approval Number
MSU/DPRI/MUERC/00196/15
IRB Name
Social Science & Humanities Inter-Divisional Research Ethics Committee
IRB Approval Date
2015-05-26
IRB Approval Number
SSD/CUREC1A/BSG C1A_16-002
Analysis Plan

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Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
Yes
Intervention Completion Date
March 31, 2016, 12:00 AM +00:00
Is data collection complete?
Yes
Data Collection Completion Date
March 31, 2016, 12:00 AM +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
Was attrition correlated with treatment status?
Final Sample Size: Total Number of Observations
Final Sample Size (or Number of Clusters) by Treatment Arms
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers