An assumption underlying _____________ is that observed covariation among a set of variables is due to one or more underlying common dimensions.
- factor analysis
- path analysis
- trend analysis
- multiple regression
The Correct Answer is A.
The primary function of factor analysis is to identify the factors that underlie the intercorrelations among a set of variables. Covariation is another word for correlation, so this question is asking what technique is used to determine what accounts for the intercorrelations among a set of variables.
Answer B: Path analysis is used to test causal models for the relationships among a set of variables.
Answer C: Trend analysis is a type of analysis of variance that is used to assess linear and nonlinear trends when the independent variable is quantitative.
Answer D: Multiple regression is used to predict a score on a criterion based on scores of two or more predictors.