Suppose that a cereal manufacturer tried out a new cereal box design for a few months, and—during the same time period—notices that its sales have tripled. One of the cereal executives, Mr. Correl, boasts that the new cereal box must have sparked the increase in sales. But another executive, Mr. Scien, points out that the increase could be due to the new advertising campaign that the company
is using, or to new distribution practices that have taken hold, or to the fact that more and more people are eating cereal these days. That is, Mr. Scien suggests that the company's "test" of the new cereal box design is low in ____.
a. operationalizing
b. generalizability
c. internal validity
d. external validity
C
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Conducting a meta-analysis often provides a ____
a. clearer picture of a phenomenon than single experiments observed in isolation b. narrow view of a phenomenon c. random sampling of a phenomenon d. less discrete picture of a phenomenon than that of single experiments
Russ is a geneticist who studies the nitrogen bases in the DNA molecule. Which of these is he studying?
a. Phenylthiocarbamide b. Alleles c. Cytosine d. Proteome
Mr. and Mrs. Cortina have discovered that their son has been skipping classes and cutting school with a group of boys. Which of the following conclusions is most likely true?
The group has led their innocent son astray. The behavior is nothing to worry about. Their son chose this group because he shares their interests. When they are all together, they are less rebellious than when they are alone.
Your teenager stayed up all night talking to her long-distance boyfriend on the phone, which resulted in an extremely high phone bill you had to pay
You do not want her to do not want her to repeat that behavior so you take away her phone for a month. Which of the following describes your technique? a. positive reinforcement b. negative reinforcement c. punishment d. observational learning