Which of the following cognitive abilities are characteristic of a school-aged child in Piaget's concrete operational stage? (select all that apply)
Object permanence
Egocentric thinking
Ability to perform logical operations on concrete
Understanding the concept of conservation
Use of symbolic play
Correct Answer : C,D
A. Object permanence is a cognitive ability typically developed during the sensorimotor stage (0-2 years), not during the concrete operational stage (7-11 years).
B. Egocentric thinking is characteristic of the preoperational stage (2-7 years) and decreases as children enter the concrete operational stage.
C. The ability to perform logical operations on concrete objects is a hallmark of the concrete operational stage, where children can think logically about physical objects and events.
D. Understanding the concept of conservation, which refers to recognizing that quantity does not change despite changes in shape or arrangement, is a key characteristic of the concrete operational stage.
E. Use of symbolic play is more characteristic of the preoperational stage, where children engage in imaginative play rather than concrete operations.
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Correct Answer is C
Explanation
A. The meningococcal (MCV4) vaccine is typically recommended for preteens and adolescents, usually starting at age 11.
B. The hepatitis B vaccine is typically administered at birth, 1-2 months, and 6-18 months, so a 4-year-old may already have received this vaccine.
C. The varicella (VAR) vaccine is recommended for children at ages 12-15 months and again at 4-6 years, making it appropriate for a 4-year-old child.
D. The Haemophilus influenza type b (Hib) vaccine is usually given to children in a series before 5 years of age, but it is more commonly completed by age 2-3 years. The 4-year-old may already be up to date with this vaccine.
Correct Answer is ["C","D"]
Explanation
A. This reflects a lack of understanding of conservation, as cutting a sandwich does not increase the quantity of food.
B. This belief shows a misunderstanding of conservation, where children may not recognize that the volume remains constant regardless of the container's shape.
C. Understanding that the amount of a substance remains the same even if its appearance changes is a key characteristic of conservation.
D. Recognizing that a ball of clay can be flattened and rolled back into a ball without changing its amount also demonstrates an understanding of conservation.
E. This belief indicates a misunderstanding of conservation, as the amount of liquid does not change based on the height or width of the container.