Dr. John, in his study investigating the effect of stress on consumption of carbohydrates, found that stress increased the consumption of carbohydrates.
However, he also found that stress increased the desire to consume carbohydrates, the amount of time a person thought about carbohydrates, and the amount of time a person thought about eating. Because stress had the same affect on these other measures that were related to consumption of carbohydrates, the study had
a. outcome validity.
b. treatment variation validity.
c. dependent variable validity.
d. ecological validity.
An experimental psychology lab student is having difficulty making a number of decisions such as identifying the variables to use in the experiment and the type of research participants to use. This difficulty could be because the student
a. did not have the psychology null hypothesis.
b. did not have a research problem that was specific enough.
c. did not state the research problem as a question.
d. forgot to write a scientific hypothesis.
What are three measures of central tendency?
What will be an ideal response?
Jacques surveys fellow students to rate their preferences for various courses on campus. He finds that the sciences are least popular whereas the humanities are most popular.
However, he neglects the fact that he performed his survey right after midterm grades were announced. His friend Ghislaine follows up by doing the same survey at the beginning of the following semester and gets very different results. This may be an issue of
a. ecological validity.
b. temporal validity.
c. internal validity.
d. global validity.
Why is the statement What type of parenting is best for children? not a good research question?
a. parenting is a very personal issue and should not be open to research
b. research on children is unethical
c. it does not specify the methods to be used to answer the question
d. it is not sufficiently specific
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