Occurs when a person genuinely accepts the group norms. This results in a private as well as a public change of opinions/behaviour.
Identification
Sometimes we conform to the opinions/behaviour of a group because there is something about that group we value. We identify with the group, so we want to be part of it.
Compliance: is public change only, superficial
Identification: is wanting to be like the group, public and private change
Internalisation: accepting group norms, results in private as well as public change of opinions/behaviour
Compliance involves simply 'going along with others' in public, but privately not changing personal opinions and/or behaviour.
Compliance results in only a superficial change
Compliance means that a particular behaviour or opinion stops as soon as grouppressure stops
Identification may mean we publicly change our opinions/behaviour to be accepted by the group, even if we don't privately agree with everything the group stands.
Change of opinion through internalisation is usually permanent because attitudes have been internalised. The change in opinions/behaviour persists even in the absence of other group members.