Help me find the correct answers to study

Question 1

Scenario #1: Imagine you are a consultant for a large HMO. The CEO has asked you to design a program evaluation to determine if they are providing quality care to their patients. The next 15 questions (1-15) relate to Scenario #1.

The CEO wants a qualitative study. Which of the following represents qualitative data?

		Interview a random set of patients to assess their satisfaction with healthcare at the HMO.
		Send a questionnaire to a random sample of patients with Likert-type rating scales.
		Make objective observations using a checklist of patients’ interactions with the physicians.
		Analyze the number of test procedures denied by the patients’ insurance providers.

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Question 2

The CEO wants to know the principal advantage of a qualitative study. Which statement is the more accurate?

A qualitative study will allow you to access a wider range of patient views.

A qualitative study will allow you to explore the patient views in greater depth.

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Question 3

A qualitative study will always provide more valid results compared to a quantitative study.

		True
		False

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Question 4

What is the first step of the research process?

		Create a plan for research
		Select the research approach
		Identifying the research problem
		Obtain Human Subjects Approval

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Question 5

If you decided to use an associational approach for the evaluation, which of the following conditions would apply?

		You would use random assignment of treatments or conditions to intact groups.
		You would use an attribute independent variable.

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Question 6

The outcome of an evaluation can only be assessed using a qualitative methodology.

		True
		False

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Question 7

The CEO wants the data to be representative of all the HMO patients. How would probability sampling achieve a representative sample of the patient population?

		Probability sampling would survey every patient at the HMO.
		Probability sampling would survey every patient at one of the HMO hospitals.
		Probability sampling would survey a convenience sample of patients.
		Probability sampling would survey a random sample of patients.

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Question 8

Which situation best describes a probability sample?

The researcher stands at the front entrance to a hospital and randomly interviews patients as they enter and leave the facility.

A researcher obtains a list of all of the patients who have been admitted to a hospital and selects ten percent of the patients to interview using a table of random numbers.

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Question 9

Snowballing is the best way to produce a representative sample.

		True
		False

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Question 10

Which of the following is the best way to ensure that the evaluation has high external validity (generalizability)?

		Replicate the study at other medical facilities.
		Use only reliable and valid measures.
		Have all survey items reviewed by a panel of experts.
		Perform a content analysis on all interview protocols.

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Question 11

The CEO is confused about the difference between external and internal validity. Which statement should you select to explain the distinction?

		External validity deals with whether the results from a study generalize to other populations and situations, whereas internal validity deals with whether the conclusions from the study are logical and reasonable.
		External validity deals with whether the measures used in a study are appropriate, whereas internal validity deals with whether the measures are stable and consistent.

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Question 12

Both internal and external validity are achieved when the sample of participants is large and they are randomly drawn from the population.

		True
		False

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Question 13

The CEO understands about different forms of bias and wants to minimize experimenter bias specifically. Which technique will best minimize experimenter bias?

		Use a double-blind technique for interviewing.
		Do not allow the researchers to analyze the raw data.
		Survey a random sample of patients.
		Control for all extraneous demographic variables in the study.

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Question 14

Two researchers are selecting participants for groups in a study. Which one is demonstrating the most experimenter bias?

		Researcher #1 selects participants according to their height.
		Researcher #2 selects participants according to the last four digits of their phone number.

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Question 15

Selection bias is a threat to the internal validity of a study.

		True
		False

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Question 16

Scenario #2: You are a manager in charge of the 360-degree assessment at a company that provides financial and accounting services to a wide variety of other organizations. The next 15 questions (16-30) related to Scenario #2.

You want your 360-degree assessment to have the highest level of measurement precision. Which of the following methods is most likely to achieve your objective?

		Have each of the different people doing the assessment conduct interviews and then report their impressions.
		Design a rating scale to be used and test it for reliability and validity.
		Allow the people doing the assessing to devise their own rating system to ensure variety.
		Have the raters focus on psychological traits of the employees (e.g., work attitude, personality, enthusiasm) rather than objective behaviors (e.g., production, work quality, time management).

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Question 17

If you were trying to explain the difference between a quantitative measure and a qualitative measure to one of your senior managers, which expression would be most accurate?

		A quantitative measure examines behaviors in numerical degrees and a qualitative measure looks at behaviors in broad categories.
		A quantitative measure is a more reliable measure of behavior and a qualitative measure is a more valid measure of behavior.

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Question 18

A rating scale (such as a Likert scale) used in a 360-degree assessment is an example of an ordinal measure.

		True
		False

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Question 19

Assuming you want high validity to your assessment system, which of the following techniques is the best way to test for validity?

		Assess the inter-rater agreement.
		Perform a test-retest analysis.
		Check the inter-item consistency.
		Correlate the ratings with other measures of success.

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Question 20

Which of the following two techniques below is the best procedure for testing reliability?

Assess the inter-rater agreement.

Test if the ratings predict future job performance.

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Question 21

A 360-degree assessment instrument cannot have high validity if it is low in reliability.

		True
		False

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Question 22

Possible problems with the a one group pretest-posttest design include

		Maturation effects.
		group differences
		Poor ecological validity.
		selection bias.

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Question 23

If you wanted to compare men and women on a 360-degree assessment, you would use which approach?

		Descriptive.
		Associational
		Comparative
		Qualitative

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Question 24

Sampling bias can reduce the external validity of a study.

		True
		False

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Question 25

You decide to evaluate your company’s 360-degree assessment using one of the four designs below. Which design will provide you with the most valid results?

		Compare the performance of two divisions in the company, one using the 360-degree system and the other using the old system.
		Compare the performance of all the employees before and after the introduction of the 360-degree system.
		Measure the performance of two divisions in the company using the old assessment system. Have one division remain on the old system and the other division use the new 360-degree system and compare their performance one-year later
		Randomly assign employees to two groups. One group is assessed using the old system; the other group is assessed using the new 360-degree system. Compare the performance of the two groups one-year later.

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Question 26

Which of the two designs is a true experimental design?

		Solomon Four-Group Design.
		Two Group, Pretest/Posttest Design.

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Question 27

The most crucial property of a true experimental design is the random assignment of participants to groups.

		True
		False

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Question 28

Let’s say you choose to compare two groups in the company. One group is allowed to submit a self-assessment and the other is not. What is the best way to deal with the possibility that these two groups do not start out as equivalent (e.g., they differ in the proportion of males and females, or there are salary differences, or they have different levels of educational achievement)?

		Randomly assign employees to each group.
		Select employees from two divisions in the company and matching them on demographic variables.
		Use a convenience sample and give everyone a pretest.
		Don’t worry about it because these differences will not invalidate your study.

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Question 29

Which of the following two groups is more likely to be equivalent?

		Group A and Group B are selected by social security number—those with low numbers go in Group A, those with high numbers go in Group B.
		Group A and Group B are selected by social security number—those ending with an even number go in Group A, those ending with an odd number go in Group B.

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Question 30

The problems with research designs that have nonequivalent groups can be solved if the two groups are given both a pretest and a posttest.

		True
		False

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Question 31

Scenario # 3: You are asked by the Dean of the College of Letters and Sciences at a major California university to assess the performance of virtual teams in their online classes. The next 15 questions (31-45) relate to Scenario #3.
The Dean wants you to use a mixed methods approach. Which of the following best describes a mixed method?

		A combination of individual and group interviews.
		A combination of quantitative and qualitative measures.
		A questionnaire with a mixture of Likert rating scales and summative rating scales.
		A survey given to a mixed demographic.

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Question 32

As part of your research strategy, you propose to do focus groups with randomly selected virtual teams. Focus groups are classified as which type of research method?

Quantitative.

Qualitative.

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Question 33

Mixed method approaches to research are a bad idea because it is difficult to draw valid conclusions when researcher mix their methodologies.

		True
		False

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Question 34

Suppose you select as your dependent variable the number of posted comments made by each member of the online team. Which of the following would most likely be considered an independent variable?

		The length of each posted comment.
		The amount of critical thinking displayed in each comment.
		Whether the team was large or small.
		The degree to which team comments stayed on topic.

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Question 35

As part of your investigation, you wanted to know if the virtual teams worked better together when they were able to talk to each other using headsets as compared to simply using a discussion board. The comparison between using a headset and using a discussion board would be a(n) _____________ variable.

Independent.

Dependent.

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Question 36

Another way to look at independent and dependent variables is to consider the independent variable as the cause and the dependent variable as the effect.

		True
		False

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Question 37

If your study of virtual online-teams was to test the relationship between class size and amount of team communication, which variable would you most likely want to control?

		Type of class (e.g., science, math, philosophy, language).
		Size of class (e.g., small, medium, large).
		Number of posted comments.
		Length of posted comments.

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Question 38

Which of the following is the best method for controlling extraneous (unwanted "nuisance”) variables?

		Randomly assign students to different teams
		Use a large convenience sample.

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Question 39

Controlling some variables in a study is necessary because those variables may influence the dependent variable and limit what you can conclude about the effects of the independent variable.

		True
		False

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Question 40

You plan to study the effects of technology on the cohesiveness of the virtual teams. You’ve decided that you need a control (comparison, contrast) group for your study. Which group makes the most sense as a control group?

		Teams that interact without the use of any technology.
		Teams from social science classes.
		Teams from humanities classes.
		Non-cohesive teams.

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Question 41

The Dean asks you why your study requires a control group. What is your best answer?

		The control group establishes a baseline for comparison.
		The control group increases reliability of the dependent variable.

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Question 42

A control group is typically a group that does not receive the experimental treatment in a study.

		True
		False

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Question 43

Your study will examine virtual teams over an extended period (at least several weeks). You understand that in any longitudinal study there is the possibility of subject attrition (e.g., members of the teams may drop the class and not be part of the team at the end of the study). Which technique, theoretically, best controls for attrition?

		Permanently remove any team that loses a majority of its members during the course of the study.
		Replace missing team members with new people who respond just like the missing members.
		Whenever a team loses a member, randomly remove one member from every other team.
		Do nothing. Simply report the losses then proceed as if no attrition had occurred.

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Question 44

The Dean wants to know why attrition is a problem. Which is the best answer?

		Teams who lose members may be different from teams who do not (e.g., they may lose the weaker students and thus end up being “better” teams).
		Teams who lose members contaminate measurement precision of the teams who do not lose members (e.g., smaller teams make it more difficult to assess larger teams).

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Question 45

One way to minimize the subject attrition problem is to maintain contact with the subjects and attend to their needs..

		True
		False

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Question 46

Scenario #4: You have designed a comprehensive survey of the sexual practices of readers of a major men’s magazine. The survey involves full disclosure, a signed a waiver, and then (1) a questionnaire that is administered by email, (2) focus groups of men recruited at several malls, and (3) individual interviews of men who volunteered to be interviewed in your private office The next 15 questions (46-60) relate to Scenario #4.

Which situation describes an instance of possible sample bias?

		The questionnaire may have items that only apply to men.
		The focus groups are allowed to vary in size.
		The men recruited from shopping malls are not a representative sample of the readers of men’s magazines.
		A private office is an environment that is too formal for investigating sexual practices.

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Question 47

Sample bias is a problem because

		The researcher cannot be sure that the sample is representative of the population of interest.
		Responses from the participant may not reflect their true beliefs or practices.

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Question 48

Sampling bias and selection bias are just different names for the same phenomenon.

		True
		False

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Question 49

Which of the following is an example of an open-ended question?

		Tell me why you read this magazine?
		On a 1 to 5 scale, rate how much you enjoy this magazine.

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Question 50

After you do your survey, you want to use a summated scale for a construct that has five items. This means that you

		Sum the high and low questions.
		Sum all of the five items.
		Sum the standard deviations within the five items.
		Sum the five items and divide by the standard deviation.

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Question 51

The null hypotheses states that there is no difference between two groups

		True
		False

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Question 52

Which of the following represents a scale construction problem when developing a survey?

		Using double negative and double barreled items.
		Using Likert scaling instead of a semantic differential scale.
		Using unobtrusive measures.
		Using trained judges.

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Question 53

If you compare urban men to rural men in your survey and make a Type I error, you have

		Falsely concluded that these two groups are different.
		Falsely concluded that there is no difference between these two groups.

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Question 54

The power of your survey will depend on the number of men who return the survey.

		True
		False

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Question 55

Survey research sometimes tries to make causal inferences when only a correlation exists. Which statement confuses causation with correlation?

		The survey shows that the sales of men’s products are higher in our magazine than any other men’s magazine on the market today.
		The survey shows that the readership of our magazine increases as income and educational levels increase.
		The survey shows that five percent of our readers are women, which shows that our content is not exclusively male oriented.
		The survey shows that the more frequently men read our magazine the more sex they have, which shows that reading our magazine creates sexier men.

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Question 56

Correlation does not imply causation because

		Correlation is a statistical procedure and statistics do not usually prove anything.
		A correlation simply shows an association between two events but does not rule out other possible associations.

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Question 57

Causality is demonstrated when the independent variable is manipulated and is followed by a change in the dependent variable while all other variables are controlled.

		True
		False

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Question 58

If the survey described in Scenario #4 wanted to show the relationship between men's annual income the number of sexual partners they have had, which statistical procedure would be appropriate?

		t-test
		ANOVA
		correlation
		Chi-square

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Question 59

If the survey described in Scenario #4 wanted to show that urban men spend more money on men's magazines than rural men, which statistic would be appropriate

		t-test.
		ANOVA
		correlation
		Chi-square

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Question 60

The focus group and interview portion of the survey described in Scenario #4, would be considered ______________ research

		Quantitative
		Qualitative

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