Exam 15: Understanding Regression Analysis Basics

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There is a direct cause-and-effect relationship or true dependence between the dependent and independent variables in regression analysis.

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A general conceptual model identifies independent and dependent variables and shows their expected basic relationships to one another.

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Regression is ________ to correlation by the underlying straight-line relationship.

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What does a researcher do with the mixed significance results he or she may have found in a multiple regression analysis?

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What is a way of guaranteeing that the straight line that runs through the points on the scatter diagram is positioned so as to minimize the vertical distances away from the line of the various points?

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What is the underlying general conceptual model in multiple regression analysis? Why are the roles of the market researcher and the marketing manager important in this conceptual model?

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What is stepwise multiple regression? When is it useful for a researcher to use this method?

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The objective of a screening mechanism is to identify the relevant or meaningful variables as they relate to some dependent variable of interest.

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A marketing researcher may be faced with a large number and variety of prospective independent variables in a general conceptual model,and may use ________ as a way of spotting the salient independent variables for the dependent variable at hand.

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To compute a(intercept)and b(slope),you must work with a number of ________ of the various levels of the dependent variable paired with different levels of the independent variable.

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What do researchers do with mixed significance results that they might find in multiple regression analysis? Describe the process to address this issue.

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Low multiple R values signal what?

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High multiple R values indicate what?

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With multiple regression,it is not necessary to look at the significance level of each calculated beta.

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Stepwise regression is useful if a researcher has many independent variables and wants to narrow the set down to a smaller number of statistically significant variables.

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What is the basic concept behind bivariate regression? Describe the basic relationship of dependent and independent variables.

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Generally,during the trimming process,successive iterations sometimes cause the multiple R to change somewhat.However,it is not advisable to scrutinize this value after each run since the software automatically performs this action.

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The ________ is the basis of regression analysis.

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It is possible to inspect the strength of the linear relationship between the independent variables and the dependent variable with multiple regression.

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What is the predictive analysis technique in which one or more variables are used to predict the level of another by use of the straight-line formula?

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