A professor selects a sample of participants from his class by selecting the first participant using a random procedure, then selecting every third student listed in the class roster. What type of sampling procedure did the researcher use?
A. random sampling
B. simple random sampling
C. systematic sampling
D. stratified random sampling
Answer: C
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Kate had parents who were warm and responsive while she was an infant. According to the theory developed by Hazan and Shaver, as an adult Kate is MOST likely to find
a. it is difficult to trust other people or become close to them. b. her relationships lack intimacy and trust. c. it is relatively easy for her to form close relationships with others. d. she has a wide circle of superficial friends, but very few close friends.
Which of the following is NOT important for readability?
a. Number of syllables per word b. Sentence length c. Both are important d. Neither are important
Overall, about ______ of people who try to stop smoking are still smoke free after 2 years.
A. 0% B. 10% C. 20% D. 50%
Lidia gives a talk at a psychology conference in which she presents her new theory about the causes of autism. At one point, an audience member interrupts and says "but that's just your theory." What is the problem with this statement?
A) A theory is not the same thing as an opinion or belief. B) If Lidia is presenting the theory at a psychology conference it must be true. C) If most of the psychologists in the audience agree with Lidia, then the theory is likely to be true. D) The audience member should have used the term hypothesis, not theory.