Respuesta :
Sadie lacks object permanence. Object permanence means that objects still exist even when they cannot be viewed. It not unusual for Sadie to lack object permanence because it is not something infants possess. Infants gained the ability as they grow older through touching objects and holding the objects they think stopped existing.
Answer:
When sadie's favorite toy doll is covered up with a blanket, sadie begins to cry, because she thinks it has disappeared. sadie lacks __________?
Explanation:
I was going to say she lacks knowledge, but after reading more on google about this question i think she lacks object permanence. oh wait..... sorry. i just realized someone already said that :| whoops....