Inability to understand that a ball of clay that has been molded into a "snake" can be formed into a ball again is an example of
A. conservation.
B. centration.
C. irreversibility.
D. egocentrism.
Answer: C
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One concern over the use of stimulants to control the symptoms of ADHD is that stimulants
a. may increase height and weight gains. b. are being used to control normal high activity levels of children at home or at school. c. may become more effective, even too potent, over time. d. associated with very serious psychomotor side effects such as tardive dyskinesia.
If the null hypothesis for an ANOVA is false, then the F-ratio should be:
a. greater than 5.00. b. a negative number. c. greater than 1.00. d. 1.00 or less.
Parents who don't spend much time with their children, showing little physical affection, were associated with ___________ attachment among their kids
a) secure b) avoidant c) ambivalent d) difficult
Menarche typically occurs around _______ years of age; its timing reflects __________
a) 10; nature, overwhelmingly b) 10; nature and nurture c) 12; nature, overwhelmingly d) 12; nature and nurture