What observation persuaded Piaget that young children lack the concept of object permanence?
a. They don't reach around a barrier to retrieve a toy
b. They look away from a toy after seeing it for only a few seconds.
c. They say that a row of coins has more after they are spread out.
d. They say that a ball of clay weighs more after it has been squashed flat.
a
Psychology
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If knowing the level of an independent variable received by a participant does not at all
improve prediction of that participant 's score in an experiment, then ?2 will be _____ . a. -1.0 b. 100 percent c. 1.0 d. 0.0
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Self-report measures of personality are advantageous because:
a. they are designed to be taken by both children and adults. b. they are designed for people of all ranges of intelligence. c. they are designed and automated to be scored quickly. d. they are designed for people with all ranges of reading ability.
Psychology