There are primarily two kinds of stimulants: methylphenidates and amphetamines. The methylphenidate stimulants _________________; amphetamines ________________
A. block the dopamine transporter; increase the release of biogenetic amines
B. unblock the dopamine transporter; increase the release of biogenetic amines
C. block the dopamine transporter; decrease the release of biogenetic amines
D. unblock the dopamine transporter; decrease the release of biogenetic amines
ANS: A
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What are the degrees of freedom?
A restaurant wants to know if more people order its “mega meat pizza” or “mammoth vegetable pizza” depending on whether it is a weekend night or a weekday night. The restaurant keeps track of customers’ preference for these two types of pizza (mega meat or mammoth vegetable) and the night of the week it’s ordered (weekend night or weekday night) over 2 weeks. It finds that a total of 150 people ordered one of these pizzas, with 60 ordering mega meat on a weekend night, 20 ordering mega meat on a weekday night, 25 ordering mammoth vegetable on a weekend night, and 45 ordering mammoth vegetable on a weekend night. Conduct the appropriate statistical test to see if there is a difference between the frequencies of customers ordering the two types of pizza. Assume that the expected frequencies are equal, and use an alpha of .05
Standards-based tests are most appropriate in which of the following situations?
A. To make admission decisions at a college or university B. To place students in classes based on level of difficulty C. To assess skills that students are expected to master before moving to the next grade D. To determine whether a student has met the particular objectives established in the classroom
Which of the following is described as a characteristic of peace?
a. Continuous conflict managed constructively b. A trait of certain countries/peoples c. An unchanging set of affairs d. Based on enforced agreements
Which of the following pairings is conceptually correct?
A) order effect, blinding B) Hawthorne, attention C) expectancy, regression D) random, reliability