Which of the following statements concerning homeless individuals is true?
a. Approximately 1/3 of the homeless have a violent criminal past.
b. Approximately 1/3 of the homeless suffer from a severe mental illness.
c. Approximately 1/2 of the homeless are minorities.
d. Approximately 2/3 of the homeless have a severe drug or alcohol problem.
B
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How well do infant IQ tests, such as the Bayley scales, predict later school success?
a. Overall scores on the Bayley scales predict later school grades and IQ scores. b. Performance on the Bayley language items predict language skills at ages 6-8. c. The Bayley scales can predict math grades in elementary school. d. Items on the Bayley scales predict school success through college.
The success of humans is due to our intelligence, which makes us very
A) future-oriented. B) adaptable. C) communal. D) aggressive.
The use of the principles of chance to assign participants to treatment and control groups for the purpose of avoiding systematic bias is called
a. randomization. c. random dispersion. b. random assignment. d. random variability.
When two components are placed next to each other, such as XY, it means
a. add the two components. b. subtract the second component from the first component. c. multiply the two components. d. divide the second component into the first component.