And display anxiety when separated and will be upset when an adult they rely on leaves. Although separation anxiety increases between 6 and 15 months, its onset depends on the infant's temperament and adult behavior. The child will express distress when the mother leaves, but if the caregiver is supportive and sensitive, this anxiety may be short-lived. FORMATION OF A RECIPROCAL RELATIONSHIP 18 months – 2 years, With rapid growth in language representation at the age of 2, the toddler is now able to understand some of the factors that influence the comings and goings of his parents and predict their return. Thus, protests against separation diminish. The child might negotiate with the caregiver, using demands and persuasion to change their goals as they age. The child is less dependent on the person caring for him, he is more confident that the person caring for him will be accessible and responsive in times of