Exam 15: Understanding Regression Analysis Basics

In regression analysis,it is strictly a statistical relationship between dependent and independent variables,not causal.

What is the primary term for"coefficient of determination,"a handy measure of the strength of the overall linear relationship?

With ________,the statistically significant independent variable that explains the most variance in the dependent variable is determined and entered into the multiple regression equation.

The independent variables that interest market researchers are typically sales,potential sales,or some attitude held by those who make up the market.

________ is a very powerful tool because it tells us what factors are related to the dependent variable,how each factor influences the dependent variable(the sign),and how much each factor influences it(the size of bi).

When regression is used as a screening device,standardized beta coefficients for the significant variables are reported.

Researchers should think about regression analysis in terms of cause and effect.

Researchers must keep in mind that it is not necessary to run trimmed regressions iteratively until all betas are significant.

________ is like a lead indicator of the multiple regression analysis findings since it is one of the first pieces of information provided in a multiple regression output.

Many researchers avoid mentally converting the multiple R value into a percentage,but rather insist on using a decimal value.

When using SPSS to run stepwise multiple regression,there is:

When a researcher has many independent variables and wants to narrow the set down to a smaller number,which form of regression is useful?

In the research design determination stage,the researcher and manager reduce the myriad of independent variables down to a manageable number to be included on the questionnaire.

The terminology is slightly different in places,and some statistics are modified to take into account the multiple aspects,but for the most part,concepts in multiple regression are not analogous to those in the simple bivariate case.

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

________ is an expansion of bivariate regression analysis in that more than one independent variable is used in the regression equation.

What is a satisfactory method for improving a regression analysis?

For most clients,the independent variable of interest is sales,purchases,intentions to purchase,satisfaction,or some other variable that translates in some way to how customers regard or behave toward the company or brand.

It is common practice to directly compare the beta coefficient for family size to another for money spent per month on personal grooming.

Even though two variables,such as sales and advertising,are logically connected,a regression analysis does not permit the marketing researcher to make cause-and-effect statements because: