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Exam 5: Identifying Good Measurement

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Question 31

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Explain the difference between validity and reliability.Explain whether they are related or independent concepts.

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Students should state that reliability i...

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Question 32

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Todd is also studying the effect of popularity on academic success for his research methods project.He decides to measure popularity by asking each elementary school student to tell him how many friends he or she has.He assumes that more friends means the student is more popular.Which of the following best describes this variable?

A) A ratio scale of measurement
B) A quantitative variable
C) A self-report measure
D) Both b and c
E) All of the above

F) D) and E)
G) A) and D)

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Question 33

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RESEARCH STUDY 5.1 Dr. Valencia is considering conducting a study examining whether narcissistic people have poorer social interactions than those who are not narcissistic. One of her first tasks is to determine which of her participants are narcissistic and which are not. She decides to use the scale created by a colleague, the Mayo scale. Question 1 reads, "I tend not to think about other people as much as myself." Question 2 reads, "I do not have a high opinion of myself." Question 3 reads, "I think other people think I am really special." -Refer to Research Study 5.1 above to answer the following question. Before using the measure in her study,Dr.Valencia gives the measure to a group of students on Tuesday.She gives the measure to them again on Thursday.She then compares the scores between the two days.This is a test of which of the following?

Asking many similar questions when trying to measure a concept is done to:

Which of the following is true of operational definitions?

RESEARCH STUDY 5.2 Dr. Sheffield is a clinical psychologist who specializes in treating pathological gambling. Pathological gambling is defined as being unable to resist impulses to gamble. Bothered by not having a good measure that he can give to clients to determine whether they are suffering from this condition, he creates a new measure of pathological gambling. The measure has 15 questions and it takes 20 minutes to complete. -Refer to Research Study 5.2 above to answer the following question. Dr.Sheffield decides to test the predictive validity of his measure.Dr.Sheffield gives his measure to a group of people that includes suspected problem gamblers and non-gamblers.Which of the following options below does he need to do in addition to get evidence for predictive validity?

Explain why your textbook argues,"In fact,operationalizations are one place where creativity comes into the research process."

In which of the following ways are content and face validity similar?

Which of the following is NOT an example of physiological measurement?

RESEARCH STUDY 5.4 Dr. Li is interested in creating a measurement of religiosity. According to the dictionary, religiosity is "the quality of being religious; piety; devoutness." He creates a measure comprising 10 statements. People respond to each statement using the following scale (1 = strongly disagree, 3 = neither agree nor disagree, 5 = strongly agree). Some of the statements are below. Statement 1: "I believe in a religion." Statement 2: "Part of who I am stems from my religious beliefs." Statement 3: "I believe that religion is unnecessary." -Refer to Research Study 5.4 above to answer the following question. Provide a suggestion for how Dr.Li could establish the predictive validity of his measure and a suggestion for how he could establish the concurrent validity of his measure.