A test has a reliability coefficient of .75. This coefficient indicates that
a. 56 percent of the variance in scores is true variance.
b. 75 percent of the variance in scores is true variance.
c. 25 percent of the variance in scores is true variance.
d. 75 percent of the test items are valid.
B
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An important characteristic of a caregiver for toddlers is patience
Indicate whether the statement is true or false
What are five major trends influencing education in the 21st century, and why must educational designers become aware of their impact on 21st century classrooms?
What will be an ideal response?
. In the United States the No Child Left Behind Act of 2001 mandates three of the following. Which one does it not mandate?
a. States must determine knowledge and skills that students should reasonably acquire at various grade levels. b. By high school, students must demonstrate knowledge of the structure and general policies of the U.S. government. c. States must regularly assess students' academic progress during the upper elementary and middle school grades. d. Schools that do not demonstrate progress are subject to certain sanctions (e.g., administrative restructuring, dismissal of faculty members).
Refer to Figure 6-7. Suppose a price floor of $8 is imposed on this market. As a result,
a. Buyers' total expenditure on the good decreases by $20
b. The supply curve shifts to the left; quality sold is now 30 units and the price is $8
c. The quantity of the good demanded decreases by 10 units
d. The price of the good continues to serve to serve as the rationing mechanism