These articles describe ideas about contextual performance, organizational citizenship behaviour (OCB), and similar patterns of behaviour that have been developed by scholars working from very different research traditions. They aim to promote human performance and organizational effectiveness.

The three primary papers in this special issue explore personality measurement in both directions, that is, more narrow and specific and more broad and heterogeneous. The first paper reviews research on conditional reasoning, with a focus on the construct of aggression. Next, tolerance for contradiction is explored, which is defined as a mode of thinking that accepts and even thrives on apparent contradictory information. The last primary paper covers core self evaluation, which combines measures of four traits: locus of control, self-esteem, generalized self-efficacy, and emotional...