During a question-and-answer session, which of the following techniques are not useful?
A) Lower your voice toward the end of your talk, so that listeners know it is ending
B) If the questioner?s voice is inaudible, repeat the question
C) Glance around the room; do not focus attention solely on the questioner
D) Afterward, breathe deeply and return to your seat confidently
A
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_______________ reflect the setting, the needs of the audience, the speaker's goal, or a combination of all three
a) Format b) Briefings c) Reports d) Training presentations
In a study of the effectiveness of a public relations campaign on students at a local university, the researcher randomly selects a sample from four different subpopulations of the total population of students: first year students, second year students, third year students, and fourth & fifth year students together. What sampling method is this researcher using?
a. stratified sampling b. quota sampling c. systematic sampling d. cluster sampling