PSYC 3003 Week 3 Quiz with Answers

PSYC 3003 Week 3 Quiz with Answers • Week 3 test PREP • • • Question 1 2 out of 2 points A researcher indicates the experimental condition of an experiment using the number 1 and the control condition using the number 2. What kind of variable is being used? Selected Answer: d. Nominal Correct Answer: d. Nominal • Question 2 2 out of 2 points When choosing a measure to use for a study, it is important to Selected Answer: b. choose a measure that minimizes reactivity and bias. Correct Answer: b. choose a measure that minimizes reactivity and bias. • Question 3 2 out of 2 points The nomological net refers to Selected Answer: a. the correlations among many different measured variables. Correct Answer: a. the correlations among many different measured variables. • Question 4 2 out of 2 points Which of the following is a type of participant reactivity? Selected Answer: c. Self-promotion Correct Answer: c. Self-promotion • Question 5 2 out of 2 points An example of a conceptual variable is _________; an example of a measured variable is___________. Selected Answer: a. self-esteem; the Rosenberg self-esteem scale Correct Answer: a. self-esteem; the Rosenberg self-esteem scale • Question 6 2 out of 2 points Which of the following equations represents the relationship between true score, actual score, and reliability? Selected Answer: a. Reliability equals true score divided by actual score. Correct Answer: a. Reliability equals true score divided by actual score. • Question 7 2 out of 2 points Which of the following is a correct statement? Selected Answer: a. A scale must be reliable in order to have construct validity. Correct Answer: a. A scale must be reliable in order to have construct validity. • Question 8 2 out of 2 points If it is found that people’s self-esteem changes quickly—for instance, from day to day—then self-esteem should be considered to be Selected Answer: b. a state variable. Correct Answer: b. a state variable. • Question 9 2 out of 2 points Discriminant validity refers to Selected Answer: a. the extent to which a measured variable does not correlate with other variables designed to measure different conceptual variables. Correct Answer: a. the extent to which a measured variable does not correlate with other variables designed to measure different conceptual variables. • Question 10 0 out of 2 points In order to study the conceptual variable of ____________, a researcher might use the behavioral measure of ____________. Selected Answer: Correct Answer: d. prejudice; standing distance from someone of a different race • Question 11 2 out of 2 points Which of the following best describes the Rorschach inkblot test? Selected Answer: a. A projective test Correct Answer: a. A projective test • Question 12 0 out of 2 points A researcher who used a self-report measure of job interest to predict performance on a managerial task would be interested in the _____ of her self-report measure. Selected Answer: Correct Answer: a. predictive validity • Question 13 2 out of 2 points Kappa is used Selected Answer: c. to compute the reliability of a set of nominal variables. Correct Answer: c. to compute the reliability of a set of nominal variables. • Question 14 2 out of 2 points A scale that asks participants to check off as many items as apply from a list is probably which type of scale? Selected Answer: a. Guttman Correct Answer: a. Guttman • Question 15 0 out of 2 points Conceptual variables are turned into measured variables using Selected Answer: . Correct Answer: c. an operational definition. • Question 16 2 out of 2 points Which of the following is true about the difference between random and systematic error? Selected Answer: a. Random error is self-canceling, whereas systematic error tends to increase or decrease the scores on the measured variable. Correct Answer: a. Random error is self-canceling, whereas systematic error tends to increase or decrease the scores on the measured variable. • Question 17 2 out of 2 points Measuring how many times a person bites their nails in a two-hour period is an example of Selected Answer: b. a quantitative variable. Correct Answer: b. a quantitative variable. • Question 18 0 out of 2 points A measure of schizophrenia that measures only elements of auditory hallucinations, but not other symptoms of schizophrenia, would be said to have Selected Answer: Correct Answer: c. low content validity. • Question 19 2 out of 2 points Donna is in a two-part experiment. She completed a self-esteem measure one week ago and is now taking the same measure again. Which of the following problems may arise from this process? Selected Answer: d. Retesting effects Correct Answer: d. Retesting effects • Question 20 2 out of 2 points About half of the items on a Likert scale should be reverse-scored in order to Selected Answer: b. control for acquiescent responding. Correct Answer: b. control for acquiescent responding. • Question 21 2 out of 2 points Franklin is interested in determining what college students do in their everyday lives. He gives some students a beeper and asks them to wear it around for a few days. The beeper is programmed to go off at randomly determined times. Whenever the beeper goes off, students are asked to write down where they are and what they were thinking about at the time. Franklin’s measure could be best considered as which of the following measures? Selected Answer: b. A free-format self-report measure Correct Answer: b. A free-format self-report measure • Question 22 0 out of 2 points A researcher measures participants’ speed to push a button on the computer when a stimulus is presented on the computer screen. Which of the following measurement scales describes this reaction time measure? Selected Answer: Correct Answer: d. Ratio scale • Question 23 0 out of 2 points If the average correlation among the items on an anxiety scale is r = .95, we can say that the scale has Selected Answer: Correct Answer: c. high internal consistency. • Question 24 2 out of 2 points An ordinal scale could be used to measure which of the following? Selected Answer: c. Attractiveness Correct Answer: c. Attractiveness • Question 25 2 out of 2 points Which of the following is the best operational definition of the conceptual variable of attraction? Selected Answer: b. The number of inches an individual sits away from another person at a table Correct Answer: b. The number of inches an individual sits away from another person at a table • Question 26 2 out of 2 points William decides to study differences in student’s interest in their psychology class. He figures that people who are more interested in the class will come to class more often, so he keeps track of class attendance. In William’s research project, interest in the class is which of the following? Selected Answer: b. A conceptual variable Correct Answer: b. A conceptual variable • Question 27 2 out of 2 points A semantic differential scale that contains 15 percent random error would be considered Selected Answer: a. reliable. Correct Answer: a. reliable. • Question 28 2 out of 2 points Researchers are more likely to achieve reliable observations when Selected Answer: d. two observers show agreement in their descriptions of an event. Correct Answer: d. two observers show agreement in their descriptions of an event. • Question 29 2 out of 2 points A researcher has developed a new test of “interpersonal skills.” It consists of measuring a person’s shoe size. The test shows a test-retest reliability of .85. It appears that this test has __________ and ___________. Selected Answer: b. high reliability; low face validity Correct Answer: b. high reliability; low face validity • Question 30 2 out of 2 points Which of the following would be likely to improve the reliability and validity of a measure? Selected Answer: c. Using pilot testing to select good questions Correct Answer: c. Using pilot testing to select good questions