Rubin and Rubin (1995) suggest three guidelines for selecting informants when designing a purposive sampling strategy. What is one of these guidelines?

A) Informants should be knowledgeable about the cultural arena or situation or experience being studied
B) Informant are selected in advance by the researcher.
C) Informants should not be representative of the range of points of view
D) Elements are selected to ensure that the sample represents certain characteristics in proportion to their prevalence in the population.


A) Informants should be knowledgeable about the cultural arena or situation or experience being studied

Criminal Justice

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Discuss a few ways in which forensic science may assist in the prosecution of war criminals

What will be an ideal response?

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Neighborhood friendships, juvenile hall and prison contacts, family relationships, coethnic contacts, buyer-seller interactions and _________ are all relationships that form strong personal linkages between persons engaged in criminal activity

a. enemies b. elderly c. lovers d. none of the above

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The type of validity that asks, "Does it work?" is called ________

a. face validity b. pragmatic validity c. endemic validity d. construct validity

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After a trial for armed robbery that resulted in a conviction, Charlie Garrin successfully appealed the armed robbery conviction on the ground that his federal constitutional right to a speedy trial had been violated

Since Charlie Garrin has prevailed in his appeal, the remedy he will receive for the constitutional speedy trial violation is that A) the trial has discretion concerning whether to allow a retrial or to reduce the sentence by the length of the delay. B) the trial judge who presided will reduce Charlie Garrin's sentence by the length of time that the right to a speedy trial was violated. C) Charlie Garrin will be granted a new trial for armed robbery so long as the prosecution does not delay the trial for any reason. D) the jurisdiction in which the armed robbery case was originally tried must pay compensation to Charlie Garrin for any personal damages that Charlie Garrin suffered as a result of the delay. E) Charlie Garrin will be set completely free and will not be retried for armed robbery.

Criminal Justice