For a particular population, a sample of n = 4 scores has an expected value of 10 . For the same population, a sample of n = 25 scores would have an expected value of _____
a. 4 c. 10
b. 8 d. 20
C
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What is the correct sequence of developmental stages that Jean Piaget claimed all infants pass through?
A. sensorimotor, concrete operational, preoperational, formal operational B. sensorimotor, formal operational, preoperational, concrete operational C. preoperational, sensorimotor, concrete operational, formal operational D. sensorimotor, preoperational, concrete operational, formal operational
Quinn is 3 years old. He is unable to focus on two aspects of a situation at once. According to Piaget, this indicates that Quinn lacks conservation skills. What developmental stage is Quinn in?
a. Sensorimotor b. Concrete operations c. Preoperational d. Formal operations
Over the past 100 years, population IQ scores have a. remained about the same
b. decreased about 3 points per decade. c. increased about 3 points per decade. d. doubled.
According to Piaget's cognitive-developmental theory, ____________________ is a biological tendency
Fill in the blank(s) with correct word