In the context of criminal trials, which of the following statements is true of hearsay? a. A hearsay statement is admissible only if the original remark was made by an expert witness. b. Admitting hearsay as evidence protects witnesses' Sixth Amendment right. c. A hearsay statement is usually admissible if there seems to be little risk of a lie. d. Most states prohibit hearsay evidence when the statement contains an admission of wrongdoing.

The procedures for reporting potential unanticipated problems involving risk to subjects or others to the irb are: stated in the human subject protection regulations, but not in the drug or device regulationsincluded in the consent processdetermined by research staffdetermined by the institution in its written policies and procedures

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

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