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Question
Explain the difference between forward selection, backward elimination, and stepwise selection for the imputation of variables in a regression equation.
Answer
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Related questions
Q:
List and explain the five steps researchers take when using structural equation modeling.
Q:
Specification error occurs _____.
A. when a researcher fails to use all ratio variables in multiple regression.
B. when a researcher fails to use appropriate variables in path analysis
C. when a researcher fails to consider all important predictor variables in structural equation modeling.
D. when a researcher fails to consider all important predictor variables in conjoint analysis
E. None of the above
Q:
Which of the following statements is not true about factor rotation?
A. Through rotation, the factor matrix is transformed into a simpler one that is easier to interpret
B. Rotation affects the communalities and the percentage of total variance explained
C. Preferably, variables should load on only one factor
D. Different rotation methods may identify different factors
E. One rotation method is varimax
Q:
Jack is performing a factor analysis on twenty items relevant to perceptions of service quality. Using a principal components approach, the following eigenvalues were produced: 3.45, 2.78, 1.33, 1.24, 1.01, .567, .443, and .223. How many factors should Jack retain based on these eigenvalues?
A. 1
B. 2
C. 3
D. 5
E. 8
Q:
The technique used to provide a more simple and interpretable picture of the relationships between factors and variables is called _____.
A. rotation
B. regression
C. resistance
D. principal components
E. residual analysis
Q:
The mean scores in a MANOVA are called _____.
A. mu
B. centroids
C. ku
D. lambda
E. beta
Q:
Which of the following measures is useful for detecting the presence of multicollinearity in a regression equation?
A. Variable inflation factor
B. Standard error
C. Correlation coefficient
D. Beta
E. Alpha
Q:
Which of the following statistical techniques uses two or more independent, metric variables to classify observations into categories of a nominal, dependent variable?
A. Factor analysis
B. Multivariate analysis of variance
C. Multiple regression
D. Multidimensional scaling
E. Discriminant analysis
Q:
Multiple regression is a statistical technique that _____.
A. identifies homogeneous subgroups
B. identifies patterns underlying combinations of the original variables capable of summarizing the original set
C. develops a perceptual map of the locations of some objects relative to others
D. predicts or explains the value for a dependent variable using the values of independent variables
E. uses two or more independent, metric variables to classify observations into categories of a nominal, dependent variable
Q:
Research design strategy encompasses all of the components below except _____.
A. data collection design
B. sampling design
C. instrument development
D. data analysis
E. all of the above are part of the design strategy
Q:
Which of the following is a reason researchers use encyclopedias?
A. To verify spelling
B. To find authors and titles of prior works
C. To locate articles from a large set
D. To find historical information
E. All of the above
Q:
Explain the steps involved in the data mining process.
Q:
Explain the five steps in conducting a literature search.
Q:
Measurement questions are questions posed to _____.
A. managers
B. researchers
C. field workers
D. study participants
E. pollsters
Q:
One of the investigative questions identified in the BankChoice project questions the perceived service quality associated with different bank branches. This is an example of a(n) _____.
A. behavioral issues
B. performance considerations
C. attitudinal issues
D. measurement issues
E. managerial considerations
Q:
Maurice is beginning a new research project. As he begins the first phase of the process, Maurice will most likely begin by _____.
A. conducting a literature search
B. interviewing experts
C. designing a survey
D. preparing measurement questions
E. brainstorming
Q:
When evaluating an information source, the time period and geographic limitations are considered as part of the _____ factor.
A. purpose
B. scope
C. authority
D. audience
E. format
Q:
All of the following are factors useful in evaluating a source except _____.
A. purpose
B. scope
C. cost
D. authority
E. audience
Q:
Explain the value of conducting a pilot test and the primary considerations for a research planning to use a pilot test.
Q:
Ill-defined problems are those that _____.
A. cannot be expressed completely or easily
B. cannot be answered
C. can be answered through data mining
D. cannot be addressed with secondary data
E. develop in method-bound research projects
Q:
All of the following components are included in the overview section of a research report except _____.
A. problem background
B. findings from secondary sources
C. research design
D. procedures
E. recommendations
Q:
Jason is entering the data analysis portion of his research project. Data analysis involves all of the following activities except _____.
A. reducing data to a manageable size
B. developing summaries
C. conducting focus groups
D. looking for patterns
E. applying statistical techniques
Q:
Which of the following terms fails to capture the meaning of a research design?
A. Map
B. Blueprint
C. Manual
D. Dictionary
E. Guidebook
Q:
Which form of budgeting involves taking a fixed percentage of some criterion such as sales as the basis for the research budget?
A. Rule-of-thumb budgeting
B. Percentage-of-sales budgeting
C. Departmental budgeting
D. Task budgeting
E. functional-area budgeting
Q:
Who answers investigative questions?
A. Management decision makers
B. Researchers
C. Field workers
D. Participants
E. Statisticians
Q:
Who answers measurement questions?
A. Management decision makers
B. Researchers
C. Field workers
D. Participants
E. Statisticians
Q:
Observation means to collect data by _____.
A. viewing
B. listening
C. touching
D. smelling
E. all of the above
Q:
What are some of the responsibilities of interviewers aside from conducting the actual interviews? Name five of these responsibilities.
Q:
In order to increase participation during group interviews, moderators should ____.
A. Use abstract terminology in the questions
B. Not express appreciation for a participant's contributions
C. Discourage participant questions
D. Encourage participants to socialize
E. Disguise the purpose of the interview.
Q:
Which term below is used to describe the combining of several qualitative methods or combining qualitative with quantitative methods?
A. Triangulation
B. Dyadic support
C. Inter-rater reliability
D. Projection
E. Component sorts