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Which procedure would you not use to determine the number of factors to be included in your interpolation of an EFA?


A) Select the number of factors with eigenvalues of 1.00 or higher.
B) Examine a scree plot of eigenvalues plotted against the factor numbers.
C) Disregard any communalities.
D) Analyse increasing numbers of factors; stop when all non-trivial variance is accounted for.

Correct Answer

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Kaiser's criterion for retaining factors is


A) Retain any factor with an eigenvalue greater than 0.7.
B) Retain any factor with an eigenvalue greater than 1.
C) Retain factors before the point of inflexion on a scree plot.
D) Retain factors with communalities greater than 0.7.

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A screen plot in factor analysis is a plot of


A) Each factor against its eigenvalue.
B) The factor loadings of each variable onto each factor.
C) The correlations between variables.
D) The regression coefficient of each variable with each factor.

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Factor loadings are


A) The weights of each factor.
B) The weights of each variable.
C) Correlations between each variable and each factor.
D) Correlations between all the variables.

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Most researchers use exploratory factor analysis to


A) Confirm the data are real.
B) Determine the number of factors/ constructs underlying a set of variables.
C) Reduce the data to a smaller number of variables.
D) Confirm the number of factors.

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Which statement is not true of exploratory factor analysis (EFA) ?


A) EFA identifies the factor structure or model for a set of variables.
B) EFA establishes the number of principal underlying factors in the data.
C) EFA identifies the pattern seen in the correlations of each variable to the factors.
D) EFA confirms the number of constructs identified in previous research.

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Cronbach's alpha identified the following values for each of the three factors Factor 1 0.943 Factor 2 0.876 Factor 3 0.877 What process in SPSS provided this information?


A) Extraction
B) Rotation
C) Communalities
D) None of the above

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Liu and Shen (2008) conducted a study to investigate and confirm the dimensional structure of the Care Giver Strain Questionnaire measured from subjects used in clinical research. A factor analysis generated a range of data and included the following scree plot. On this plot, where does the point of inflexion occur? Liu and Shen (2008) conducted a study to investigate and confirm the dimensional structure of the Care Giver Strain Questionnaire measured from subjects used in clinical research. A factor analysis generated a range of data and included the following scree plot. On this plot, where does the point of inflexion occur? Source: http:/ / www2.sas.com/ proceedings/ forum2008/ 383-2008.pdf A) At eigenvalue 2 on the Y-axis and 2 on the X-axis B) Between eigenvalues 2 and 3 on the Y-axis and at 2 on the Y-axis C) Between eigenvalues 3 and 4 on the Y-axis D) Between eigenvalues 1 and 2 on the Y-axis Source: http:/ / www2.sas.com/ proceedings/ forum2008/ 383-2008.pdf


A) At eigenvalue 2 on the Y-axis and 2 on the X-axis
B) Between eigenvalues 2 and 3 on the Y-axis and at 2 on the Y-axis
C) Between eigenvalues 3 and 4 on the Y-axis
D) Between eigenvalues 1 and 2 on the Y-axis

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A screen plot is a graphical representation of which of the following?


A) Eigenvalues plotted against associated factors
B) Eigenvalues plotted against relevant variables
C) Eigenvalues plotted against eigenvectors
D) None of the above

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A screen plot is a graphical representation of which of the following?


A) Eigenvalues plotted against associated factors
B) Eigenvalues plotted against relevant variables
C) Eigenvalues plotted against eigenvectors
D) None of the above

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Which statement is not true of exploratory factor analysis (EFA) ?


A) EFA identifies the factor structure or model for a set of variables.
B) EFA establishes the number of principal underlying factors in the data.
C) EFA identifies the pattern seen in the correlations of each variable to the factors.
D) EFA confirms the number of constructs identified in previous research.

Correct Answer

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Which of the following must be met for EFA?


A) Presence of relationships determined by the correlation matrix
B) Sphericity determined by a Bartlett test
C) Normal distribution in the variables determined by a Kolmogorov-Smirnov tests
D) Interaction between the variables determined by ANOVA

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Which of these is a form of oblique rotation?


A) Varimax
B) Quartimax
C) Equamax
D) Promax

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What does the following output from a factor analysis tell us? What does the following output from a factor analysis tell us? A) The sample size is sufficient, but there is multicollinearity in the data. B) The sample size is inadequate, and there is multicollinearity in the data. C) The sample size is adequate, and the correlations in the correlation matrix are significantly bigger than zero. D) The sample size is adequate, but the correlations in the correlation matrix are not big enough.


A) The sample size is sufficient, but there is multicollinearity in the data.
B) The sample size is inadequate, and there is multicollinearity in the data.
C) The sample size is adequate, and the correlations in the correlation matrix are significantly bigger than zero.
D) The sample size is adequate, but the correlations in the correlation matrix are not big enough.

Correct Answer

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Based on the following output, which item on this questionnaire would most improve the reliability of the questionnaire if it were removed? Based on the following output, which item on this questionnaire would most improve the reliability of the questionnaire if it were removed? A) Q12. B) Q16. C) Q21. D) Q4.


A) Q12.
B) Q16.
C) Q21.
D) Q4.

Correct Answer

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Principal component analysis is


A) Used to summarize data whilst retaining maximum variance.
B) Used to summarize data whilst retaining minimum variance.
C) Derive as few factors as possible.
D) Derive as many solutions as possible.

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A screen plot in factor analysis is a plot of


A) Each factor against its eigenvalue.
B) The factor loadings of each variable onto each factor.
C) The correlations between variables.
D) The regression coefficient of each variable with each factor.

Correct Answer

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Varimax rotation should be used when


A) Factors are expected to correlate.
B) Factors are non-orthogonal.
C) Factors are independent.
D) Kaiser's criterion is met.

Correct Answer

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Based on this scree plot, how many factors should be extracted? Based on this scree plot, how many factors should be extracted? A) 2. B) 3. C) 4. D) 5.


A) 2.
B) 3.
C) 4.
D) 5.

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Reverse-scoring items prior to running a reliability analysis allows for which of the following?


A) Bartlett's test of sphericity
B) Rotation techniques
C) Identification of outliers
D) None of the above

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