Which of the following substages of Jean Piaget's sensorimotor development is characterized by an infant becoming more object-oriented, moving beyond self-preoccupation?
A. simple reflexes
B. first habits
C. secondary circular reactions
D. primary circular reactions
Answer: C
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Evaluate the research on the impact of Head Start on later achievement in school. Based on the research, what conclusions can be drawn?
What will be an ideal response?
Which medical advance has contributed to the need for very precise legal definitions of death?
A. electroencephalogram B. heart-lung machine C. intravenous fluids D. mechanical ventilator
Dr. Spock wants to study whether having schizophrenia leads to an increase in risky health behaviors. Which would be the most appropriate control group to use for comparison?
A) a group of people with anxiety B) a randomly selected group of college students C) people diagnosed with both schizophrenia and anxiety D) no control group is necessary
Sharene, age 11, found herself in the very center of the portrait, as the tallest child. Surprised, and wondered, "How did everyone get to be so short?" Although the hormonal changes that trigger puberty begin in late childhood, the first outward sign of puberty is the adolescent growth spurt that generally begins in girls at about age 10.
Answer the following statement true (T) or false (F)