Which term best describes Abby and Brittany Hensel?
a. They are monozygotic twins.
b. They are dicephalic twins.
c. They are dizygotic twins.
d. They are technically not twins at all.
c
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Which of the following most intrigued Pavlov and led to his discoveries?
A. The dogs seemed to enjoy the food. B. The assistant salivated along with the dogs when the dogs started to eat. C. The dogs stopped salivating after seeing the assistant so many times. D. The dogs started to salivate when they saw Pavlov's assistant, before they got the food.
The studies of egocentrism and visual perspective taking by Flavell and by Moll and colleagues revealed that contrary to Piaget's data from the three-mountain problem, children __________.
A. as young as 3 understand perspective confronting-how an object looks to another person when the child is presented a conflicting view of the object (e.g., an object that looks green to the child and blue to another person) B. as young as 3 develop level 2 perspective taking, which means they understand that two people may see the same things differently (e.g., a picture sitting on the table between the child and another person might look upside down to the other person) C. do not develop level 1 perspective taking until age 4, which means they understand that other people may not see the same things they see (e.g., an object the child can see might be blocked or obscured for a viewer at another angle) D. understand level 1 and level 2 perspective taking as well as a third skill, perspective confronting, by about age 4½
______ sampling technique is like a stratified random sample, but without the random selection.
A. Simple random B. Quota C. Volunteer D. Stratified random
Continuous development is characterized by ______.
A. abrupt change B. slow and gradual change C. change influenced by genetics D. change influenced by passivity