When a psychologist rejects the null hypothesis at the .05 level, the results of a study indicate that
A) there is less than a 5% chance of getting such an extreme result if the null hypothesis is true.
B) there is more than a 5% chance of getting such an extreme result if the null hypothesis is true.
C) there is a 5% chance that the research hypothesis is true.
D) there is a 95% chance that the research hypothesis is true.
A
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According to the National Comorbidity Survey, what percentage of people who qualify for a diagnosis of one mental disorder in their lifetime are likely to meet the criteria for two or more disorders?
a. less than 5 percent b. almost 100 percent c. a little more than 50 percent d. no more than 20 percent
Researchers working on the Human Genome Project identified the sequence of nearly all 3 billion bases
Indicate whether this statement is true or false.