Ronald is in the first grade and is given an addition

worksheet to complete. At one point on the worksheet, the problems 2 + 5 = and 5 + 2 = are side-by-side. Ronald uses his fingers to count out each problem, although the same numbers are used but in a different order. Ronald is illustrating his lack of
a. reversibility.
b. object permanence.
c. animism.
d. egocentricism.


ANSWER: a

Psychology

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Unlike Piaget's theory of cognitive development, Vygotsky emphasizes that

a. cognitive development is a universal process that unfolds in largely the same way for most individuals. b. social interactions and culture strongly influence the cognitive development of a child. c. language does not play a crucial role in cognitive development. d. a child's active exploration of the world strongly influences cognitive development.

Psychology

Most infant intelligence tests emphasize

A) concepts and memory. B) memory and mental representations. C) perceptual and motor responses. D) attention and categorization.

Psychology

In comparison to the percent of two-parent families in the U.S. living in poverty today, the percent of single-parent families headed by a father living in poverty is:

a. slightly lower b. about the same c. about 10% higher d. nearly twice as high

Psychology

Mario wants to ensure that his newly developed measure of empathy correlates with other, established scales measuring empathy. Mario would like to establish __________ for his new measuring instrument.

A. test-retest reliability B. intercoder reliability C. face validity D. convergent validity

Psychology