Which of the following correlation coefficients is most likely to be statistically significant?
a) .00
b) -.10
c) .40
d) -.85
d
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Steve decides to do a study on intelligence in math based on age. He takes three groups of children in three different ages and studies them at the same time. Which type of research is he conducting?
A. experimental B. observational C. cross-sequential D. longitudinal
Curtis is considering buying a new workout machine that
promises weight loss at twice the rate of other machines. When Curtis questioned such a claim with the manufacturer, the customer service representative stated this was a new system and previous research on weight loss was not applicable. This example illustrates which warning sign of pseudoscience? A) Evasion of peer review B) Absence of connectivity C) Overreliance on anecdotes D) Lack of self-correction
How does the universality of facial expressions benefit modern societies currently?
A. It serves as a worldwide, cross-cultural form of meaningful communication. B. It helps insulate one society from another to protect their valuable resources. C. It helps us reduce the prevalence of crime and violence. D. It bonds social groups together to help them reach common goals.
Approximately what percentage of dementia cases is misdiagnosed by physicians?
A) 5 B) 10 C) 25 D) 50