SELECT ALL THAT APPLY. What three elements are necessary to calculate any confidence interval?

A. the researcher needs to know the desired confidence
B. multiplying the standard error by the corresponding z-score
C. adding/subtracting the result from the mean
D. identifying the corresponding variables to the z-score


A. the researcher needs to know the desired confidence
B. multiplying the standard error by the corresponding z-score
C. adding/subtracting the result from the mean

Social Work & Human Services

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Which state was the first to legalize gay marriage in 2004?

A. California B. Oregon C. New York D. Massachusetts

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The tendency to give a favorable impression of oneself is an example of random error

Indicate whether the statement is true or false

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It is a BAD idea when ordering the questions in a questionnaire to

A) put the more sensitive questions towards the end. B) put questions on a similar topic together, proceeding by a transition statement. C) put a long list of "standard demographic" questions at the beginning (e.g., how old are you, how many children do you have, how many bathrooms are in your house, etc.). D) A and B. E) B and C.

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Macro level theories are usually:

a. highly specific b. too vague to be of use in social work c. able to explain smaller components of social reality d. a and c only e. e. none of the above

Social Work & Human Services