A study compares the means of two groups, each having N = 10. If the standard deviations in the two groups are 4.00 and 6.00, what is the value for the standard error of the difference ?

a. 2.28
b. 1.00
c. 10.00
d. 5.20


a. 2.28

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Based on the chi-square value calculated and the critical value identified above, what can be deduced from the association between athletic status and whether the London Olympic Games inspired them to become more physically active?

A. A significant difference exists between athletic status and the level of inspiration. B. No significant difference exists between athletic status and the level of inspiration. C. The relationship between athletic status and the level of inspiration is unclear. D. A minor significant relationship exists between athletic status and the level of inspiration.

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What is a characteristic of good observation?

a. It includes subjective interpretations. b. It avoids describing nonverbal cues. c. It includes a minimum of descriptive terms. d. It is as objective as possible.

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When a family system experiences a snag point, the group is unable to utilize resources to cope with a stressor

Indicate whether the statement is true or false

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External influences such as disruptions during testing that may lower the

scores of the students are referred to as a. systematic errors b. standard errors c. random errors d. reliability errors

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