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An experiment is conducted with 15 seniors who are taking Spanish at Oak View High School. A randomly selected group of eight students is first tested with a written test and a day later with an oral exam. To avoid order effects, the other seven students are tested in reverse order. The instructor is interested in the difference in grades between the two testing methods. SPSS is used to obtain descriptive statistics for the grades of the two tests.
-What are the degrees of freedom for this design?
A) 7
B) 8
C) 14
D) 29

Question

Use the following information for questions:
 An experiment is conducted with 15 seniors who are taking Spanish at Oak View High School. A randomly selected group of eight students is first tested with a written test and a day later with an oral exam. To avoid order effects, the other seven students are tested in reverse order. The instructor is interested in the difference in grades between the two testing methods. SPSS is used to obtain descriptive statistics for the grades of the two tests. 
-What are the degrees of freedom for this design?
A) 7 
B) 8 
C) 14 
D) 29

Quizplus · Accepted Answer

Degrees of freedom in a statistical test are the number of values in the final calculation of a statistic that are free to vary. In this context, without specific details about the design, the correct answer cannot be determined precisely. However, given only the options, the choice is based on common statistical scenarios or typical setups, which might involve calculations leading to a specific degrees of freedom.

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