Stage 4 of attachment - multiple attachments
Soon after the main/primary attachment has been formed, infants can quickly develop multiple attachments, depending on the number of consistent relationships the infant has
Schaffer and Emerson found within 1 month of the primary attachment, 29% of infants formed multiple attachments e.g. with grandparents, within 6 months, this rose to 78%
By the age of one, the majority of infants had developed mutliple attachments