PSYC 255 quiz 4 questions and answers solutuion

PSYC 255 quiz 4 questions and answers solutuion Question 1 2 out of 2 points The two main sampling techniques that researchers use are sampling and sampling. Question 2 2 out of 2 points A nonprobability sampling procedure where a sample is acquired by a referral process among similar individuals is called a sampling procedure. Question 3 2 out of 2 points Kelly is conducting a study on campus parking for her psychology class. She begins her study by identifying naturally occurring groups of individuals who park on campus. These include those who park in the north, south, east, and west lots. She then sample participants from each of these groups. Kelly is using probability Question 4 2 out of 2 points In order to secure participants for his study, Jason uses class rosters from instructors. Jason selects every 5th person on the instructor’s class rosters for participation in his experiment. Jason is using sampling. Question 5 2 out of 2 points After analyzing her data, Faith has found that her power level for her analyses is .80. Faith’s power is considered to be . Question 6 2 out of 2 points A nonprobability sampling procedure where participants are selected based on their availability or willingness to participate is called a sampling procedure. Question 7 2 out of 2 points A researcher who places all potential participants for a study in a hat and randomly draws names for inclusion in their study is using a probability sampling procedure. Question 8 2 out of 2 points Linda is conducting a survey to evaluate the eating habits of customers at fast food restaurants. She knows that people eat at the restaurant for breakfast, lunch, and dinner. Therefore, she plans to randomly sample participants from each of these groups. This process is known as probability sampling. Question 9 2 out of 2 points A probability sampling technique in which a researcher begins by identifying subgroups and then randomly samples from each group is called probability sampling. Question 10 2 out of 2 points Studies conducted at most universities that use General Psychology students employ which nonprobability sampling procedure? Question 11 2 out of 2 points Ingrid is working on a project for her psychology class. She is having trouble getting participants for her study. Therefore, she has begun to ask those who do participate for names of other individuals who might be willing to participate. What type of nonprobability sampling procedure is Ingrid using? Question 12 2 out of 2 points Which of the following is not one of the types of probability sampling procedures? Question 13 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 Question 14 2 out of 2 points When two populations overlap greatly on a dependent variable, they are said to have a(n) effect size. Question 15 2 out of 2 points When two population overlap minimally on a dependent variable, they are said to have a(n) effect size Question 16 2 out of 2 points Research should be designed to for nuisance and extraneous variables. 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? Question 18 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? Selected Question 19 2 out of 2 points When a change in the dependent variable could be due to an event occurring sometime during the research study, and beyond the researcher’s control, is a threat to internal validity. Question 20 2 out of 2 points When a change in the dependent variable could be due to participants systematically dropping out of an experiment, is a threat to internal validity. Question 21 2 out of 2 points Psychological studies involve the use of many variables. Which of the following variables could bias research findings? Question 22 2 out of 2 points When a change in the dependent variable could be due to how participants were picked or assigned to groups, is a threat to internal validity. Question 23 2 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 Question 24 2 out of 2 points Have you ever played a video game breaking the all-time high score only to find that you were never able to duplicate that performance? This is an example of , which is a threat to internal validity. Question 25 2 out of 2 points Threats to internal validity are threats to saying . Question 26 2 out of 2 points In a study, the participant has no knowledge of which group he or she has been assigned to, although the researcher knows. Question 27 2 out of 2 points variables are variables that influence all participants and cause the experimental results to be less clear. Question 28 2 out of 2 points When a change in the dependent variable could be due to changes in how the dependent variable was measured, is a threat to internal Question 29 2 out of 2 points Which of the following statements regarding threats to internal validity is correct? Threats to internal validity can be controlled for with research designs and techniques. Question 30 2 out of 2 points Which of the following is an accurate statement regarding the similarities between extraneous and nuisance variables?