Which of the following recruitment strategy is an example of probability sampling for a study that examines studying habits of students from a class of 50 students?
A. selecting 10 students at random from a class roster
B. selecting 20 students at the beginning of the class
C. selecting 30 students at the end of the class
D. selecting all Juniors in the class
Answer: A
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On the first day of class, Guff tells his students that they can choose the way in which quizzes will be administered. Which option should Guff’s students choose in order to minimize stress??
a. ?quizzes given every Wednesday b. ?quizzes scheduled by students’ unanimous vote c. ?pop quizzes scheduled by Guff d. ?two quiz questions to be given during any class period at which attendance is high (as estimated by Guff)
For an alternating-treatments design it is essential that, for both treatments, the effect ____
a. is immediate and long lasting b. is immediate but temporary c. builds gradually over time and is long lasting d. builds gradually over time and is temporary
Explain the relationship between the physical properties of sound and the psychological experience of sound.?
What will be an ideal response?
The introduction of operational criteria as part of the definitions of most mental disorders was essential to the development of structured interviews. Such criteria first appeared in
a. DSM-I. b. DSM-II. c. DSM-III. d. DSM-IV.