Psych 255 quiz 4 questions with answers, Quizzes of Psychology

Download Psych 255 quiz 4 questions with answers and more Quizzes Psychology in PDF only on Docsity! Psych 255 quiz 4 questions with answers • Question 1 2 out of 2 points In a study, Chris selected individuals by drawing names from a hat. Chris chooses one at a time and with each individual selected, he replaces the individual’s name back in the hat before selecting the next individual. Chris is using . Selecte d Answer: sampling with replacement • Question 2 2 out of 2 points The number of individuals that are selected to participate or that participate in a study is known as the . Selecte d Answer: sampl e size • Question 3 2 out of 2 points A probability sampling technique in which a researcher identifies naturally occurring clusters of individuals from a population to select from is called probability sampling. Selecte d Answer: clus t er • Question 4 2 out of 2 points A sampling procedure occurs when not all individuals within a population have an equal likelihood or known probability of being selected. Selecte d Answer: nonprobabi li ty • Question 5 2 out of 2 points Which of the following is not one of the types of probability sampling procedures? Selecte d Answer: conveni e nt • Question 6 2 out of 2 points Which of the following is not one of the types of probability sampling procedures? Selecte d Answer: snowball i ng • Question 7 Which of the following is a type of nonprobability sampling procedure? 0 out of 2 points Selecte d Answer: simpl e Selecte d Answer: simpl e • Question 15 2 out of 2 points Stefani has identified several subgroups of individuals from the population she is studying. Stefani plans on randomly sampling participants from each of these subgroups. Stefani is using probability sampling. Selecte d Answer: stratifie d • Question 16 2 out of 2 points Which of the following is an accurate statement regarding the differences between extraneous and nuisance variables? Selecte d Answer : Extraneous variables vary with the independent variable and nuisance variables are the same for all groups of participants. • Question 17 2 out of 2 points You have just learned of survey results conducted by your university on the drinking behaviors of the college campus. Wondering about the results, you ask yourself the following questions: how were participants selected, were participants selected depending on if they lived on or off campus, were all the participants in a sorority or fraternity, were non–traditional age students included in the survey, and were men and women equally sampled? These types of questions indicate that you are concerned about what threat to internal validity? Selecte d Answer: select i on • Question 18 2 out of 2 points Psychological studies involve the use of many variables. Which of the following variables could bias research findings? Selecte d Answer: both B and C • Question 19 0 out of 2 points When a change in the dependent variable could be due to participants’ familiarity with the test, is a threat to internal validity. Selecte d Answer: instrumentati on • Question 20 2 out of 2 points Reflect on the Are You Equipped Now? section at the end of chapter 9. What if some of the participants dropped out of the experiment before the end because it was not working to alleviate pain? This question is associated with which of the following threats to internal validity? Selecte d Answer: attriti o n • Question 21 2 out of 2 points variables are variables that influence all participants and cause the experimental results to be less clear. Selecte d Answer: Nuisa n ce • Question 22 2 out of 2 points If you and a friend watched an episode of Family Guy separately and counted the number of violent acts, you are likely to get different counts. Which threat to internal validity explains these results? Selecte d Answer: instrumentati on • Question 23 2 out of 2 points Which of the following threats to internal validity would be of concern if an outbreak of salmonella in peanut butter occurred while a study was being conducted on perceptions of peanut butter? Selecte d Answer: histo r y • Question 24 2 out of 2 points When a change in the dependent variable could be due to the participant’s expectation that change will occur, is a threat to internal validity. Selecte d Answer: placebo effect • Question 25 2 out of 2 points Reflect on the Are You Equipped Now? section at the end of chapter 9. If the decrease in pain reported by participants was due to internal changes that occurred within the participant over a three-month time period, which of the following was a threat to internal validity?