A sample of n = 10 scores has a mean of 50 . A second sample has n = 5 scores and M = 60 . If the two samples are combined, the combined sample mean will be greater than 55
Indicate whether the statement is true or false
F
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Selah is aware that playing certain types of computer games can have an impact on mood, and she wonders whether these effects might vary with age. She recruits a group of college-age adults, a group of middle-aged adults, and a group of elderly adults to test her hypothesis. Selah's research is best described as ____
a. longitudinal b. cross-sectional c. repeated measures d. time series
The Big Five personality dimensions are found in the United States, but do not show up in other cultures
Indicate whether the statement is true or false.
When a person is ill, which of the following is true?
a. his or her behaviors will remain unchanged b. there will be no symptoms present c. his or her role in the family may change d. all of the above e. none of the above
__________ are the DNA living beings have at conception
a. Phenotypes b. Environmental influences c. Physical characteristics d. Genetics