Self-knowledge is a term used in psychology to describe the information that an individual draws upon when finding an answer to the question "What am I like?".
While seeking to develop the answer to this question, self-knowledge requires ongoing self-awareness and self-consciousness (which is not to be confused with consciousness). Young infants and chimpanzees display some of the traits of self-awareness and agency/contingency, yet they are not considered as also having self-consciousness. At some greater level of cognition, however, a self-conscious component emerges in addition to an increased self-awareness component, and then it becomes possible to ask "What am I like?", and to answer with self-knowledge.
Self-knowledge is a component of the self, or more accurately, the self-concept. It is the knowledge of one's self and one's properties and the desire to seek such knowledge that guide the development of the self-concept. Self-knowledge informs us of our mental representations of ourselves, which contain attributes that we uniquely pair with ourselves, and theories on whether these attributes are stable, or dynamic.
The self-concept is thought to have three primary aspects:
The affective and executive selves are also known as the felt and active selves respectively, as they refer to the emotional and behavioral components of the self-concept. Self-knowledge is linked to the cognitive self in that its motives guide our search to gain greater clarity and assurance that our own self-concept is an accurate representation of our true self; for this reason the cognitive self is also referred to as the known self. The cognitive self is made up of everything we know (or think we know about ourselves). This implies physiological properties such as hair color, race, and height etc.; and psychological properties like beliefs, values, and dislikes to name but a few.
Self-knowledge and its structure affect how events we experience are encoded, how they are selectively retrieved/recalled, and what conclusions we draw from how we interpret the memory. The analytical interpretation of our own memory can also be called meta memory, and is an important factor of meta cognition.