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Multiple Regression with Multiple Predictors MCQ

Multiple Regression with Multiple Predictors MCQ

1. The determinant of a sum of cross products, or correlation matrix, is a single-number summary of the variance for a set of variables when intercorrelations among variables are taken into account is called _____________ .

Answer

Correct Answer: Determinant of a Matrix

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2. Sum of Cross Products Matrix (SCP) is a sum of cross products matrix for a multivariate analysis such as discriminant analysis or multivariate analysis of variance includes the sum of squares (SS) for each of the quantitative variables and the sum of cross products for each pair of quantitative variables.

Answer

Correct Answer: True

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3. For each Xi predictor variable, the proportion of variance in Xi that is not predictable from other predictor variables already in the equation is known as:

Answer

Correct Answer: Tolerance

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4. _____________ is the minimum value of F that a variable must have for its R2 increment before it is entered into the equations.

Answer

Correct Answer: F-to-enter

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5. A form of statistical multiple regression that begins with all candidate predictor variables included in the equation is called __________ .

Answer

Correct Answer: Backward Method of Entry

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6. In this method of statistical regression, the analysis begins with none of the candidate predictor variables is called ___________ .’

Answer

Correct Answer: Forward Method of Entry

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7. The increase in R2 from one step in a sequential or statistical regression to the next step is known as:

Answer

Correct Answer: R2inc

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8. The squared multiple R, which can be interpreted as the proportion of variance in Y that can be predicted from X is known as:

Answer

Correct Answer: R2

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9. In a sequential or statistical regression, the additional proportion of variance explained by each predictor variable at the step when it first enters the analysis is called ____________ .

Answer

Correct Answer: Incremental sr2

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10. An index that indicates whether a case is disproportionately influential is known as:

Answer

Correct Answer: Leverage

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11. In data-driven regression, variables are entered on the basis of statistical criteria is called____________ .

Answer

Correct Answer: Data-Driven Regression

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12. _______________ is a method of regression in which the decisions to add or drop predictors from a multiple regression are made on the basis of statistical criteria (such as the increment in R2 when a predictor is entered).

Answer

Correct Answer: Statistical Regression

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13. The data analyst decides the order of entry of predictor variables is known as:

Answer

Correct Answer: User-Determined Order of Entry in Regression

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14. Sequential Regression means variables are entered one at a time (or in groups or blocks) in an order determined by the researcher. Sometimes this is called ______________ .

Answer

Correct Answer: Hierarchical regression

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