Romy understands that if she has 4 pieces of pizza and we give her 2 more, she will have 6. However, she does not know what happens if she has 6 and we take away 2. Piaget would say that Romy
has demonstrated the concept of irreversibility.
has exhibited centration.
is thinking in a static way.
has demonstrated a scaffold.
has demonstrated the concept of irreversibility.
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The stimulant that is best known for the force and violence that users inflict on others is
a. cocaine. b. nicotine. c. caffeine. d. methamphetamine.
The first stage of the scientific method is
a. Defining the problem b. Collecting data c. Communicating the findings d. Formulating a hypothesis
"Stranger danger" is implicated in children being dangerously overweight
Indicate whether this statement is true or false.
As the degrees of freedom increase, the correspondence between the t and z distributions _________
a. increases c. remains the same b. decreases d. cannot be determined