At a theoretical level EI reflects the extent to which a person attends to, processes, and acts upon information of an emotional nature intra-personally and inter-personally. However, there are ensuing debates at the operational level mainly, that have led to two distinct approaches: the ability and trait Emotional Intelligence. The ability approach uses maximum performance measures such as the Mayer, Salovey & Caruso Emotional Intelligence Test to assess individual differences in the interface of emotion with cognitive processes . Trait EI on the other hand incorporates EI abilities within a more general framework of individual self-perceived emotionality and emotion efficacy. Nevertheless, some trait EI approaches and corresponding measures diverge from the conceptualization of EI described in the beginning of this section in that they focus on individual differences in adaptation to environmental demands.