Researchers who want to find the best explanation for the cause of a phenomenon when they have several rival hypotheses should
A. describe the correlation among the variables involved.
B. conduct controlled research using experimental methods.
C. conduct research in the real world instead of in a laboratory.
D. continue observing the phenomenon of interest until the best explanation becomes clear.
Answer: B
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An adult male sparrow sings its normal song ____
a. if he hears the song during a sensitive period early in his life b. only when he hears a female bird singing c. if his own species' song is the first song he hears when young d. regardless of whether or not he has ever heard his species' song from another bird
The fugue state is considered psychotic because people with the disorder are unable to think
or behave normally. Indicate whether the statement is true or false
How would you characterize studies that examine the relationship between cyberbullying and emotional and behavioral problems?
A. The research has been conducted for many years, but many of the study results are contradictory. B. The research is so recent that it is difficult to draw many conclusions from it. C. So little research has been done on the topic that it is difficult to trust the findings. D. The research is extensive, and most of it comes to the same conclusions.
Motor behavior that is nonfunctional and repetitive is the key feature of _____.
a. tic disorder b. stereotypic movement disorder c. developmental coordination disorder