One of the postulates of Piaget's theory of egocentric behavior is that egocentric children have a conception of reality based only on their own point of view. Which of the following represents a testable hypothesis that could be derived through deductive reasoning from this theory?
a. Egocentric children are unpopular among their classmates.
b. Egocentric children rate themselves higher in status with their classmates than they actually are rated by others.
c. Small-group cooperative learning activities will be better for egocentric children than individualized learning projects.
d. Egocentric children will be less popular with teachers than will nonegocentric children.
Question 2
Which of the following illustrates the null hypothesis?
a. There is no significant difference in the achievement of groups taught by Method A and Method B.
b. The difference in the effects on achievement of Method A and Method B equals zero.
c. There is no relationship between the method of teaching and achievement.
d. All of these are true.
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