The three basic properties of an object are volume, weight, and
A) liquid
B) number
C) mass
D) height
C) mass
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Indicate for each of the types of reliability listed below whether it measures stability over time, equivalency of items, or both of these things
What will be an ideal response?
Infants develop an attachment secure base between the ages of seven and nine months. This interval is called the
a. asocial phase. b. phase of indiscriminate attachments. c. specific attachment phase. d. phase of multiple attachments.
The final stage in Piaget's theory of the stages of environment, in which children are able to apply abstract logical rules, is the
a. sensorimotor period. c. formal operational period. b. preoperational period. d. concrete operational period.
Children show increased focused attention between the ages of ____ and _____ years
Fill in the blank(s) with correct word