What makes a good contributor? Understanding contributor behavior within large Free/Open Source Software projects - A socialization perspective.

•Explores the relationship between newcomer socialization and contributor performance in FOSS communities.•Develops and validates a FOSS socialization model using an ‘embedded’ mixed-methods research design.•Conceptualizes and operationalizes the notion of FOSS community citizenship behaviors.•Determines the key factors that characterize the socialization experience of FOSS project newcomers.•FOSS newcomer socialization experience influences both task performance and FOSS community citizenship behaviors.