In the fourth step of the scientific method, scientists use mathematical techniques to ________ the results and determine whether they are significant and whether they closely fit the prediction.
A. observe
B. interpret
C. replicate
D. communicate
Answer: B
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What term is used to describe the shape of a distribution in which the scores pile up on the left-hand side of the graph and taper off to the right?
a. Symmetrical c. Negatively skewed b. Positively skewed d. Normal
Discuss three behavior patterns associated with successful aging
What will be an ideal response?
Peter believes listening to relaxing music will improve memory. He designs a study in which 15 people listen to relaxing music while studying for 30 minutes and 15 people study in a quiet room for 30 minutes. He measures how much they remember from the material they studied. In this example, the independent variable is:
a. the amount that the participants remember from the material they study b. what the participants hear while they study (relaxing music or no music) c. the number of people who take part in the experiment d. the length of time the participants were allowed to study the material
Michael uses illegal steroid supplements in order to improve his performance in the weight room. His resulting high testosterone levels are likely to a. improve the accuracy of his interpretation of the violent intentions of others
b. damage his orbitofrontal cortex. c. make him react more aggressively to threatening situations d. increase the likelihood that he will engage in premeditated violence.