Compared to elementary school, middle schools:
a. place a greater emphasis on teacher control and discipline
b. provide more opportunities for student decision making
c. challenge students with classwork that requires higher cognitive skills
d. allow for more personal teacher-student relationships
A
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Americans object to adventure playgrounds primarily because
A. They are messy B. They are unsupervised C. They are expensive D. They are not educational
When the infant arrives at the child care setting, the breast milk should be stored:
A) At room temperature until the infant is ready for a feeding. B) In the freezer immediately until the infant is ready for a feeding. C) In the refrigerator immediately until the infant is ready for a feeding. D) In a bowl of hot water immediately until the infant is ready for a feeding.
Recent research has shown that women who skip breakfast are more likely to give birth to baby girls, whereas women who eat breakfast are more likely to have baby boys. To test this, we took a sample of pregnant women who already knew the gender of their baby and asked them whether they ate breakfast each day or not. What are the odds of having a boy if you eat breakfast?
A. The number that had a boy and ate breakfast The number that had a girl and ate breakfast B. The number that had a boy and didn ' t eat breakfast The number that had a boy and ate breakfast C. The number that had a girl and ate breakfast The number that had a boy and ate breakfast D. The number that had a boy and ate breakfast The number that had a boy and didn ' t eat breakfast
The power of a statistical test is the probability of:
a. retaining a false null hypothesis b. retaining a true null hypothesis c. rejecting a false null hypothesis d. rejecting a true null hypothesis