Research into the types of atachment was done by ainsworth in 1970.
They performed the strange situation on babies allowing them to measure separation anxiety, stranger distress. They separated babies into three categories, type A, type B, and type C.
Tyep A - were distressed at the leaving of their parent, but didnt seek comfort when she returned. They also rwjected stranger attempts.
Type B - babies used their mothers as a safe base and showwd distress when she left the room, but were overjoyous on…