9. In multiple regression, the estimated regression coefficients are interpreted
ID: 3232465 • Letter: 9
Question
9. In multiple regression, the estimated regression coefficients are interpreted as change in the dependent variable per unit change in the independent variable ange in the dependent variable per unit change in the independent variable lding all other variables constant dependent d change in the independent variable per unit change in the dependent variable holding alHetherveriableas-constant 10. A form of regression which is used when the dependent is a dichotomy and the independents are of any type is called a. Dichotomous regression. b. Trick question because regression cannot be used for this case. c. Binary (or binomial) logistic regression d. Probit analysis ent and need to the needed to achieve a given power. List other factors that influence the in number of samples influence column show the influence of an increase number needed. the factor on the number of samples needed. Influence Factor Power
Explanation / Answer
1. Sample Size
Power depends on sample size. Other things being equal, larger sample size yields higher power.
2. Variance
Power also depends on variance: smaller variance yields higher power.
3. Experimental Design
Power can sometimes be increased by adopting a different experimental design that has lower error variance. For example, stratified sampling or blocking can often reduce error variance and hence increase power. However,
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.