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Which of the following is a prerequisite condition for joint attention to occur?        

The newborn’s brain is about 25 percent of its adult weight by birth; by the second birthday, the brain is about ________ percent of its adult weight.  

Children included under which dimension of Rothbart and Bates’ classification are easily distressed?    

Jayden’s father hung a bright yellow tennis ball over his crib and dangled it whenever he stood by him. Within a day or two of doing this, Jayden was seen kicking his legs in the air to reach the ball successfully. Jayden’s action is an example of the ________ substage given by Piaget.        

According to Lewis’ classification, ________ emotions involve a sense of “me.” An example of such an emotion is pride.        

Infants of 0 to 2 years of age sleep an average of ________ hours a day.  

According to the ________ theory, to develop motor skills, infants must perceive something in the environment that motivates them to act and use their perceptions to fine-tune their movements.

The dynamic systems view of motor development states that the developing of motor skills is a(n) ________ process.        

________ attention occurs when individuals focus on the same object or event and are able to track each other’s behavior; one individual directs another’s attention, and reciprocal interaction is present.  

Infants’ attention to objects is strongly governed by the ________ and habituation.