community trial
type: Concept
broader: statistics and research methods
broader: social science perspectives on epidemiology
broader: medical care and research
broader: epidemiological concepts
definition: Community trials, also called community intervention studies, are (mostly preventive) experimental studies with whole communities (such as cities or states) as experimental units; that is, interventions are assigned to all members in each of a number of communities. These are to be distinguished from field trials where interventions are assigned to healthy individuals in a community and from clinical trials in which interventions are assigned to patients in a clinical setting. [Source: Encyclopedia of Epidemiology; Community Trial]

methods
type: Collection
type: ConceptGroup
member: community trial

epidemiological concepts
type: Concept
narrower: community trial

medical care and research
type: Concept
narrower: community trial

social science perspectives on epidemiology
type: Concept
narrower: community trial

statistics and research methods
type: Concept
narrower: community trial