In the past decade, behavioural science has gained influence in policymaking but suffered a
crisis of confidence in the replicability of its findings. Here, we describe a nascent …

Objectives Behavioral intervention trials may be susceptible to poorly understood forms of
bias stemming from research participation. This article considers how assessment and other …

Failures to replicate evidence of new discoveries have forced scientists to ask whether this
unreliability is due to suboptimal implementation of methods or whether presumptively …

Despite smaller effect sizes, interventions delivered at population level to prevent non-
communicable diseases generally have greater reach, impact and equity than those …

To help move researchers away from heuristically dismissing “small” effects as unimportant,
recent articles have revisited arguments to defend why seemingly small effect sizes in …

Interventions intended to change people's behavior are ubiquitous in modern society. Some
interventions produce changes in behavior that persist even after the interventions are …

Evidence syntheses are used to inform health care policy and practice. Behaviour change
theories offer frameworks for categorising and evaluating interventions and identifying likely …

The “replication crisis” describes recent difficulties in replicating studies in various scientific
fields, most notably psychology. The available evidence primarily documents replication …

Being able to replicate scientific findings is crucial for scientific progress,,,,,,,,,,,,,–. We
replicate 21 systematically selected experimental studies in the social sciences published in …

Background Behavioral scientists suggest that for behavior change interventions to work
effectively, and deliver population-level health outcomes, they must be underpinned by …