Why did the 1916 Stanford-Binet set an upper age limit?
a. Intelligence testing is needed only for school-age groups, not for adults.
b. The IQs of all persons above the maximum possible mental age would have been less than 100.
c. It was developed during World War I when men in their teens and twenties were being drafted.
d. Acceptable reliability and validity could not be established for individuals older than 16.
b
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The person who agrees to a small request initially is more likely (in order to be consistent) to comply later with a larger demand. This describes the
a. door-in-the-face-effect. b. foot-in-the-door effect. c. lowball technique. d. highball technique.
Pregnancies in women with Turner syndrome have a high risk for chromosomal abnormalities and ____
a. fetal loss c. premature babies b. Cesarean birth d. hormonal disorders
Researchers sometimes use hospital birth lists to contact parents about the projects they are
working on. Parents that are interested simply contact the researcher if they are attracted to a particular study. Of course, this recruitment strategy means the sample will be a volunteer or self-selected sample. To ensure a more representative sample, the researcher can use __________ sampling to obtain sample demographics that are similar to the broader community. Fill in the blanks with correct word
A teratogen:
A. is a life-support system for the growing fetus. B. is any environmental factor that causes birth defects. C. affects the infant's ability to breathe. D. is a substance that stimulates skin growth.