Study A uses a chi-square test for independence. Study B uses a chi-square test for goodness-of-fit. Both report having df = 3. Which study had more categories (cells in the matrix) that were used to classify individuals in the sample?
a. study A
b. study B
c. They were the same.
d. There is not enough information to answer the question.
Ans: B
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Identify the specific reasoning skill that was NOT stressed in the 2000 NCTM Standards, for all students
a) Construct systematic two-column proofs. b) Investigate mathematical conjectures. c) Develop mathematical arguments. d) Recognize reasoning and proof as fundamental aspects of mathematics. e) Select and use various types of reasoning.
These test items are good for measuring higher-level thinking
A. free-response items B. two-response items C. multiple-response items D. guided-response items
Which of the following is not an effective way to show your professor that you are interested and involved during class?
a. Simply sit back and listen. Don't take notes so you can take all of the information in without distractions. b. Ask relevant questions about the lecture material. c. Maintain eye contact with the professor. d. Take notes, writing down key concepts and examples.
The term ______ is used to describe the manipulation of the variable and holding all other variables constant.
A. experiment B. placebo C. criterion D. control