Which Statement Is Not True About Principal Components Analysis (PCA)

question 26

Multiple Choice

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

• A) The total variance in the data is considered.
• B) PCA is recommended when the primary concern is to determine the minimum number of factors that will account for maximum variance in the data for use in subsequent multivariate analysis.
• C) The factors are estimated based only on the common variance.
• D) The diagonal of the correlation matrix consist of unities.

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Definitions:

Objectively Evaluating

The process of examining something in an unbiased, impartial manner without allowing personal feelings to influence the assessment.

Naturalistic Observation

A research method involving the observation of subjects in their natural environment without any manipulation or interference.

Sociocultural Perspective

An approach in psychology that examines how societal and cultural factors influence behaviors and mental processes.

Sociocultural Approach

The view that social and cultural factors may be just as powerful as evolutionary and physiological factors in affecting behavior and mental processing and that these factors must be understood when interpreting the behavior of others.