Which of the following describes the trends of U.S. adolescent substance use from the last three decades?
a. Use of alcohol, cigarettes, and marijuana has declined.
b. Use of alcohol has declined, but use of cigarettes and marijuana has increased.
c. Use of alcohol and marijuana has increased but use of cigarettes has declined.
d. Use of alcohol, cigarettes, and marijuana has all increased.
Answer: A
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Dr. Chenet has enough research funding to be conducting research at multiple facilities
When he applies for renewal of his grants and is questioned about some of his data from university A, he tells his reviewers that the data in question are from University B. When the administration of University B has questions about a recent publication, Dr. Chenet tells them that the data in question are from University A's research center. Unfortunately for Dr. Chenet, the University administrators and the grant reviewers have a conference call and are puzzled as to where data are being collected and on which subjects. It is beginning to be apparent that Dr. Chenet is engaging in: a. Deception b. Fabrication c. Plagiarism d. Deceptive manipulation of results
If wings, feathers, and a beak are required for something to be a bird, category membership is based on:
a. family resemblance b. a prototype c. exemplars d. defining features
Saturated or pure hues are produced by which type of wavelengths?
a. wide band b. narrow band c. combination d. high amplitude
After a person takes a placebo, there is
a. a reduction in brain activity linked with pain. b. usually only a small, insignificant effect for most people. c. initially an increase in pain, followed by mild relief. d. an immediate relief of pain, but no change in brain activity linked with this pain.