Research & Evidence
We follow primary research, high-quality reviews and material policy developments. Conclusions are kept separate from headlines and updated when the evidence changes.
Evidence ledger last reviewed 9 Sept 2026
Current view
These are measured summaries, not claims that research proves VOWR works.
Evidence suggests that well-designed commitment devices can help some people follow through, but take-up and outcomes depend on the person, goal and design.
1 peer-reviewed narrative review · 1 randomised field experiment
Last materially updated 9 Sept 2026
Research indicates that reducing social-media use can improve some measured outcomes, while effects vary and can involve trade-offs.
1 meta-analysis of 10 randomised controlled trials · 1 randomised field experiment
Last materially updated 9 Sept 2026
Experimental evidence suggests that receiving a phone notification can disrupt attention even without opening the notification.
1 controlled experiment
Last materially updated 9 Sept 2026
Recently reviewed
European Journal of Investigation in Health, Psychology and Education · 13 Nov 2025
This review combined ten randomised trials involving 1,491 participants. It reported a small reduction in depressive symptoms when social-media use was limited or paused, while noting meaningful variation between studies and a need for stronger long-term research.
It is more informative than any single experiment, but it does not establish that every kind of restriction helps every person or outcome.
Commitment and choice
Research on pre-commitment, self-control, consequences and the design of commitment devices.
Annual Review of Economics · 4 Sept 2010
This review examines why people seek commitment devices and how formal and informal commitments can help with self-control. It distinguishes hard commitments, which impose consequences, from softer structures, and stresses that demand and effectiveness depend on design and context.
It provides the behavioural-economics foundation for treating commitment as a design choice with trade-offs, not a guaranteed solution.
American Economic Journal: Applied Economics · 1 Oct 2010
A voluntary deposit contract was tested as one aid for smoking cessation. Take-up was limited, but people offered the contract were more likely than the control group to pass the study's six-month test, with an effect also observed in later surprise testing.
It is direct evidence that a financial commitment device can affect behaviour in one specific setting; it should not be generalised to every goal or product.
Attention and technology
Evidence about notifications, social platforms, persuasive design and interventions that change digital use.
American Economic Review · 1 Mar 2020
In a randomised experiment around the 2018 US midterm election, four weeks without Facebook changed both online and offline activity. Participants reported somewhat higher subjective wellbeing, but also knew less factual news; the study records benefits and trade-offs rather than a single universal effect.
Digital-use changes can affect several parts of life at once, so outcomes should be assessed more broadly than screen time alone.
Journal of Experimental Psychology: Human Perception and Performance · 1 Aug 2015
The experiment found that phone notifications disrupted performance on an attention-demanding task even when participants did not interact with the phone. This is evidence about a short laboratory task, not a measure of long-term wellbeing.
Notifications can interrupt attention before an app is opened, making notification design relevant to digital-behaviour interventions.
A separate record
Regulation and industry developments are tracked here, but are not treated as scientific evidence.
European Commission · 14 Jul 2025
The European Commission published non-binding guidance for online platforms on protecting minors under the Digital Services Act. The recommendations address areas including addictive design, cyberbullying, harmful content and unwanted contact.
Platform design and digital-wellbeing expectations are becoming part of active regulatory policy, separate from the scientific evidence base.
Methodology
VOWR prioritises primary research and high-quality reviews, distinguishes research from news, summarises findings in plain English and links to original sources. We update conclusions when the evidence changes.
New records are checked for relevance, source quality, study design and causal language before publication. News does not change an evidence finding unless its underlying research is assessed separately.
Research summarised here informs VOWR's thinking but should not be interpreted as proof that VOWR itself produces a particular outcome.
Questions about this work can be sent to support@vowrapp.com.