According to research cited in the text, about what percent of U. S. adolescents boys do NOT use contraception at first intercourse?
a. 2-3%
b. 6-7%
c. 15%
d. 33%
c
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Rachel is visiting her friend Edith. Edith's mom gives each of the children a can of juice and a glass. Rachel's glass is a short, fat glass, and when she pours her juice into the glass she is convinced that Edith has more juice. Rachel would clearly be in the stage of cognitive development that Piaget named the:
a. sensorimotor period b. concrete operational period c. preoperational period d. formal operational period
What determines whether a neuron has an action potential?
A. Only the number of EPSPs impinging on an axon B. Only the number of IPSPs impinging on the dendrites C. The combined effects of EPSPs and IPSPs D. Summation effects of IPSPs
The predictive validity of the Neonatal Behavioral Assessment Scale for long-term development is only modest
Indicate whether the statement is true or false
What age range is classified as middle adulthood?
a) 30 to 50 b) 30 to 60 c) 40 to 65 d) 50 to 70