What is the advantage of using a multiple regression to measure the relationships between three independent variables and a dependent variable instead of using three bivariate regressions to measure the relationships between each of the three independent variables and the dependent variable?
What will be an ideal response?
As the name implies, multiple regression simply extends bivariate procedures to include more than one independent variable. The main difference—and what needs to be stressed—is that a multiple regression coefficient indicates how much a one-unit change in an independent variable changes the dependent variable when all other variables in the model have been held constant or controlled. The controlling is done by mathematical manipulation, not by literally grouping subjects together. If we used the three bivariate regressions instead we would not be able to assess the effect of each of the three independent variables with the other two held constant.
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The population growth rate between 2000 and 2010 increased most dramatically in the ________
A. northern states only B. "Rustbelt" states of the East and Midwest C. "Sunbelt" states of the West and South D. southern states only
The greater the possibility of risk to the subject (participant), the greater the need to obtain informed consent
Indicate whether the statement is true or false
The Tenth Amendment to the Bill of Rights states that all powers not specifically assigned to the states by the Constitution are reserved to the federal government.
A. True B. False
During the constitutional deliberations, Alexander Hamilton, John Jay, and James Madison, to sway public opinion, wrote 85 essays known as which of the following?
A. The Antifederalist Papers B. Common Sense C. The Federalist Papers D. The Mayflower Compact E. The Pluralist Papers