Cutrona & Russell, 1990
The bolstering of a person's sense of competence or self-esteem by other people. Giving an individual positive feedback on his or her skills and abilities or expressing a belief that the person is capable of coping with a stressful event are examples of this type of support.
Cutrona, Carolyn E., and Daniel W. Russell. "Type of social support and specific stress: Toward a theory of optimal matching". In B. R. Sarason, I. G. Sarason, & G. R. Pierce (Eds.), Social support: An interactional view New York: Wiley 1990:322.