Among teenagers who begin smoking, about what proportion or percentage will eventually die of smoking-related causes?
a. one in twenty
b. one in ten
c. one in three
d. one in two
e. virtually all, more than 90 percent
c
You might also like to view...
A researcher selects a sample of 100 people to investigate the relationship between gender (male/female) and registering to vote. The sample consists of 40 females, of whom 30 are registered voters, and 60 males, of whom 40 are registered voters. If these data were used for a chi-square test for independence, what is the observed frequency for registered males?
a. 12 c. 40 b. 28 d. 42
On her first birthday, Emily looks at her mother as they observe the clown coming to her party. At first Emily is crying. Then her mother smiles and acts very happy, so Emily smiles, too. This is an example of
a. empathy. b. attachment. c. visual acuity. d. social referencing.
Recording methods in nonexperimental research can present a number of problems because
a. There are no hypotheses in nonexperimental research b. Hypotheses are too formally defined in nonexperimental research c. You may not know how to define instances of what you're looking for d. Hypotheses are too deductively generated in nonexperimental research
When Joyce takes a personality test, she is told that the test is reliable; that is, it
a. measures what it is designed to measure. b. compares its results against established standards of performance. c. produces the same results from one time to the next. d. predicts other criteria of the personality trait in question.