Two major developmental theorists who are discussed in the textattribute significant
developmental changes to the years of adulthood. They are Erikson and
a. Hall.
b. Kohler.
c. Vygotsky.
d. Piaget.
b
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Research suggests that, with age, regular exercise contributes to which of the following?
a) less loss of muscle fiber b) increased bone fractures c) worse performance on mental tests and increase in brain tissue d) cognitive loss
In an experiment, one group of children is given a drink each day with a special vitamin supplement. A second group of children is given the same drink but without the vitamin. Later, all children are given an IQ test to see if the vitamin had an effect on intelligence. In this experiment, the children's scores on the IQ test would be the
A. cross-sequential variable. B. dependent variable. C. control variable. D. independent variable.