When interval-ratio data are badly skewed, the appropriate measure of central tendency is the
a. mode.
b. median.
c. mean.
d. first quartile.
ANSWER: c
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To use a Spearman's correlation coefficient, the data must be
a. measured at the interval level. b. measured at the categorical level. c. normally distributed. d. rank-ordered with respect to the extent of a certain characteristic.
The percentage of father-only households in the United States has been declining over the past decade
Indicate whether the statement is true or false
An opaque spot called a __________may develop on the lens, which limits the amount of light transmitted into the eye.
A. macula B. fovea C. cataract D. spectra
Matthew is completing his master's thesis, which addresses the culture of outlaw motorcycle gangs
For the past six months, he has been riding with a gang, observing and describing behaviors in an attempt to present a view of these groups from a gang member's perspective. Like Mario Brajuha, he is determined to keep the identities of his subjects confidential. Which research method is Matthew employing? A) case study B) documentary C) participant observation D) unobtrusive measures