Pocket Aces: Commitment and Incentives Against Smartphones for Students
Last registered on March 09, 2019

Pre-Trial

Trial Information
General Information
Title
Pocket Aces: Commitment and Incentives Against Smartphones for Students
RCT ID
AEARCTR-0003329
Initial registration date
September 17, 2018
Last updated
March 09, 2019 6:04 PM EST
Location(s)
Primary Investigator
Affiliation
University of Hawaii at Manoa
Other Primary Investigator(s)
PI Affiliation
University of California Davis
PI Affiliation
Texas A&M University
Additional Trial Information
Status
Completed
Start date
2018-09-01
End date
2019-01-01
Secondary IDs
Abstract
Nearly half of US smartphone owners make an effort to limit their use, but only 30% succeed in doing so. Studies have linked increased smartphone usage to decreased worker productivity, increased traffic accidents, and reduced student learning. This study presents results from an encouragement design field experiment with Pocket Points, an app that acts as a commitment device and provides tangible incentives for curtailing smartphone usage in the classroom.
External Link(s)
Registration Citation
Citation
Aksoy, Billur, Scott Carrell and Lester Lusher. 2019. "Pocket Aces: Commitment and Incentives Against Smartphones for Students." AEA RCT Registry. March 09. https://www.socialscienceregistry.org/trials/3329/history/42934
Experimental Details
Interventions
Intervention(s)
Students from Texas A&M will be recruited to participate in an online study. Approximately half will then be encouraged to download and use the Pocket Points app. At the end of the semester, both treatment and control students will complete a survey, and all students upon signing up for the experiment agree to release their academic transcripts.
Intervention Start Date
2018-09-24
Intervention End Date
2019-01-01
Primary Outcomes
Primary Outcomes (end points)
Self-report classroom outcomes, including attendance, focus, and academic satisfaction, as well as academic outcomes collected via transcripts.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
Randomization will be carried out at the individual student level, with each student being randomized into treatment or control. Treatment students will be nudged to use the Pocket Points app, while control students will receive no intervention.
Experimental Design Details
Randomization Method
Electronically on Excel
Randomization Unit
Individual level
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
2,000 students
Sample size: planned number of observations
2,000 students
Sample size (or number of clusters) by treatment arms
Approximate 1,000 treatment, 1,000 control students
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Texas A&M Institutional Review Board
IRB Approval Date
2017-07-26
IRB Approval Number
IRB2017-0473D
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
No
Is data collection complete?
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers