Between ages 6 and 12,
A) 12 of the primary teeth are lost and replaced by permanent ones.
B) many children experience a decreasing desire for physical exercise.
C) girls lose their teeth slightly earlier than boys.
D) girls have slightly more muscle and boys more body fat.
C
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A teacher wants to increase the academic performance of the students in her class. The children receive stickers each time they complete an academic task, and when they have accumulated a certain number of stickers they can exchange them for 15 minutes of playing computer games. This program that uses conditioned reinforcers to strengthen a desirable behavior is referred to as:
a. differential reinforcement b. respondent conditioning c. behavioral skills training d. a token economy
A woman who feels more like a man than a woman has a ___ that does not match her sex
a. gender role b. gender identity c. sexual orientation d. All of the above
Events found on the SRRS that can produce stress include which of the following?
a. trouble with in-laws b. outstanding personal achievement c. marriage d. All of these are on the SRRS and can produce stress.
On the basis of twin studies and other kinship evidence, researchers estimate that ________ of the differences in IQ among children can be traced to their genetic makeup.
A. none B. about one quarter C. about one half D. almost all