Exam 19: Factor Analysis

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A is a lower triangle matrix showing the simple correlations, r, between all possible pairs of variables included in the analysis.

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The factors identified in factor analysis are overtly observed in the population.

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Factor analysis is somewhat similar to discriminant analysis in that each variable is expressed as a linear combination of underlying factors.

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A _ is a plot of the original variables using the factor loadings as coordinates.

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Which of the following applications is appropriate for using factor analysis?

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Which statement is not true about principal components analysis (PCA)?

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A factor model that provides a good fit to the data has many large residuals.

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The various methods of factor analysis are differentiated by the approach used to derive the weights or factor score coefficients.

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Which is not a method of factor analysis?

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It is recommended that the factors extracted should account for at least of the variance.

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It is possible to compute as many principal components as there are variables; in doing so, parsimony is gained.

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Factor loadings represent the correlations between sets of variables.

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Bartlett's test of sphericity is one test of the appropriateness of the factor model.

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When selecting surrogate variables from variables with similarly high loadings, the choice should be based on _ .

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Generally, the number of factors determined by a scree plot will be one or a few less than that determined by the eigenvalue criterion.

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What are the steps involved in conducting factor analysis (Figure 19.3 in the text)?

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Communality is .

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Which method of analysis does not classify variables as dependent or independent?

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If the variables are standardized, the factor model may be presented as .

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The unrotated factor matrix seldom results in factors that can be interpreted because the factors are correlated with many variables.

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