Which of the following is not a reason why multicollinearity a problem in regression?
A. It limits the size of R.
B. It makes it difficult to assess the importance of individual predictors.
C. It leads to unstable regression coefficients.
D. It creates heteroscedasticity in the data.
Answer: D
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One of Sally's preschoolers brings a stink bug to school. She wants to integrate the arts by singing a song about stink bugs, but she doesn't know any by heart. She should:
a. search the Internet and library for a stink bug song. b. forget about singing and ask the children to draw stink bugs instead. c. ask the parents if they know any stink bug songs from their cultural background. d. make up a stink bug song by having the children invent new words to a song they know.
The best room arrangement for an informal presentation lesson is sitting on the floor in a circle
Indicate whether the statement is true or false.
When individuals score "at the norm" on a standardized achievement test, it means that they have
a. performed at the average. c. scored 50 percent correct. b. scored at the expected level. d. scored at the highest possible level.
Gifted children are those who
a. have above average intelligence. b. are creative. c. are precocious in language development. d. display any of the above traits.