What are the total degrees of freedom?
To study the effects of common drugs on cognitive performance, a researcher randomly assigned college students to one of three conditions. One group of students was served two cans of beer, another group was served two cups of coffee, and the third group (the control group) was served two glasses of orange juice. Then each participant was given a test of logical reasoning and the number of errors was recorded.
Alcohol Caffeine Orange Juice/Control
15 9 6
20 8 4
10 10 10
12 13 11
13 12 6
Ans: 14
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Achievement tests measure ____ knowledge and skills; aptitude tests measure ____ abilities
a. general, specific b. specific, general
The multicultural goal of understanding multiple historical perspectives aims to
A. Revise curricular materials. B. Balance cultural pride and the appreciation of others. C. Increase awareness of achievements and contributions by groups not previously included. D. All of the above. E. None of the above.
Of the following, the best way for a teacher to determine students' progress in writing poetry would be to:
a) hold revising and editing conferences with students b) meet regularly with the students' parents c) ask the students to read favorite poems aloud d) examine entries in the students' content-area journals
The No Child Left Behind Act has led to lawsuits chiefly for:
a) Lack of Funding b) Closing the achievement gap c) High expectations d) None of these