Which of the following is true of the characteristic curve for a "good" test item?
a. It is normally distributed.
b. It is bimodal and positively skewed.
c. It has a gradual, positive slope.
d. It is negatively accelerated.
c
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The essential factor in whether or not a fetus has achieved the age of viability is ______
Fill in the blank with correct word
Lin is five years old. When watching television, she most likely
a. recognizes that the characters are actors playing roles. b. comprehends complex plots and themes. c. does not understand that most television programs are not real. d. cannot understand any of the story lines.
An eight-year-old child is short in stature and has a webbed neck, eyelid folds, and a shieldlike chest. This child's medical records indicate the presence of a chromosomal abnormality. What diagnosis will you find on the child's chart at the clinic?
a) Turner syndrome b) savant syndrome c) Klinefelter's syndrome d) XYY chromosomal pattern
A local microbrewery believes it produces the best tasting dark beer in town. To make its case, seven volunteers are asked to participate in a beer tasting contest. Each volunteer is asked to taste 5 dark beers and to pick the one he/she prefers. Of the 5 dark beers, one is microbrewery's and the other 4 are national favorites. What is the probability that at least 5 of the volunteers pick the
microbrewery's beer? Assume there is no taste preference for any of the beers and that chance alone determines each selection. a. 0.0000 c. 0.0129 b. 0.0047 d. 0.0043