What is the major disadvantage of the experimental method?
A. Researchers cannot determine correlation from the experimental method.
B. Researchers cannot determine causation from the experimental method.
C. Many important variables cannot be manipulated.
D. Researchers cannot use random assignment in the experimental method.
Ans: C. Many important variables cannot be manipulated.
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The 95% confidence interval for the difference between two treatment means extends from 2.50 to +5.50 . Based on this information, you can conclude that there is no significant difference between the treatments at the .05 level of significance
Indicate whether the statement is true or false
Community-based policing activities have played a larger role in law enforcement across the country in recent years.
Answer the following statement true (T) or false (F)