Strange situation episodes:
1) (M+B+O less than than 3 minutes): Mother (M) enters room while carrying baby (B) accompanied by observer (O); O leaves
2) (M+B): M puts B on the floor and watches, only joining in if B seeks attention
3) (S+M+B): Stranger (S) enters and sits quietly for one minute, then approaches B showing a toy for onw minute; M leaves
4) (S+B): If B is playing, S does not participate; if B is inactive, S tries to interest him in toys; if B is distressed, S tries top distract or comfort him; if B is not comforted, episode ends
5) (M+B, undetermined duration): M enters and pauses in doorway so B can respond; S leaves room. When B is settled, playing with toys, M leaves saying 'bye bye'
6) (B alone): B left alone for 3 minutes unless too distressed
7) (S+B): S enters and behaves as in ep 4; if B is too distressed, episode ends
8) (M+B): M returns, S leaves, reunion observed, procedure ends