A test given to a group of 30 students has a mean of 24 and a standard deviation of 3 . A second test given to the same group of students also had a mean of 24 but had a standard deviation of 4 . Based on this information, which of the following is the most valid conclusion
a. The students performed better on the second test, since the standard deviation is higher.
b. The average on the second test is higher than on the first test.
c. The median on the second test is higher than on the first test.
d. The students' scores on the second test spread out more than they did on the first test.
d
You might also like to view...
Which of the following is most under teacher control?
a. situational interest b. individual interest c. self-esteem d. ethnic identity
A correlational design that has one independent variable and dependent variable, both collected at the same point in time is ______.
A. simple correlation B. comparative C. prediction D. multiple regression
How do young children construct their identity and attitudes?
What will be an ideal response?
The most popular branch of the Internet is the:
a) hypertext markup. c) Catapult on JobWeb. b) Explorer search engine. d) World Wide Web.