Dahlia’s toy is covered by a blanket, but the child does not remove the blanket to look for the toy because he believes the toy is gone. This scenario shows an infant’s inability to grasp which idea?

a) Object stability
b) Object status
c) Object conservation
d) Object permanence


d A hallmark of the sensorimotor period is the development of a grasp of object permanence. Piaget argues that infants must learn that objects are physically stable.

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. When the effect of one independent variable depends on the level of another independent variable, this is called:

a. A main effect b. A cell c. An interaction effect d. Counterbalancing

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A teacher decides to praise Imad's progress on the long-division workbook problems every twenty minutes. This teacher is using a _______________ schedule of reinforcement

a. variable interval b. variable ratio c. fixed ratio d. fixed interval

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A one-race school in a school district in a de jure state is, by its existence, proof that the district is not unitary

Indicate whether the statement is true(T) or false(F).

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Just as phonemic awareness is an essential "pre" skill to reading, ____________________ is an essential "pre" skill to mathematics

Fill in the blank(s) with correct word

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