This is embarrassing, but I can't quite remember and I have to give grand rounds Monday. I need to have my statistics down pat.
2007-03-08 01:56:52 · 7 answers · asked by Amy P 4 in Science & Mathematics ➔ Mathematics
Univariate means that you are assuming that the response variable is influenced only by one other factor. Example: SAT scores are influenced by GPA. You may be looking to test the hypothesis that as the GPA rises, the SAT score rises. Here you are assuming that the GPA is the only factor influencing the SAT score.
Multivariate means that you are assuming that the response variable is influenced by multiple factors (and even combinations of factors). So for example, you might assume that SAT scores are influenced by GPA and sex (male or female). This type of analysis also leads to possibilities of crossterms, meaning there is some effect of being male and having a certain GPA on the SAT scores vs being female and having a certain GPA.
Basically, a short answer is, univariate deals with 1 predictor variable; multivariate deals with multiple predictor variables.
I hope this helps!
2007-03-08 02:04:42 · answer #1 · answered by MISSYCL 2 · 21⤊ 7⤋
RE:
What is the difference between univariate and multivariate regression analysis?
This is embarrassing, but I can't quite remember and I have to give grand rounds Monday. I need to have my statistics down pat.
2015-07-31 00:45:34 · answer #2 · answered by Marlo 1 · 1⤊ 0⤋
Consider y=f(x). If x is of dimension 1 it's univariate regression, if not it's multivariate regression analysis.
2007-03-08 02:04:25 · answer #3 · answered by cordefr 7 · 1⤊ 1⤋
Univariate Analysis
2016-09-28 15:01:54 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Univariate and multivariate just defines the number of independent variables used for a regression.
A univariate model only has one exogenous variable:
y = Bo + B1x
A multivariate model has more than one predictor, for example in a linear model:
y = Bo + B1x1 +B2x2 + B3x3
where x1, x2, and x3 are predictors.
2007-03-08 02:11:14 · answer #5 · answered by TF 1 · 5⤊ 3⤋
People are confusing multivariate and multivariable regression. MULTIVARIABLE regression has multiple independent variables. A MULTIVARIATE model has multiple dependent variables. UNIVARIATE has one dependent and one independent variable.
2015-01-27 08:36:43 · answer #6 · answered by lewbrad101 2 · 7⤊ 0⤋
Univariate Bivariate And Multivariate Analysis
2016-06-20 22:31:42 · answer #7 · answered by Anonymous · 0⤊ 0⤋
I think they refer to the (more correct) bivariate (one X and one Y) versus the multivariate (many X's and one Y).
2013-11-19 03:18:55 · answer #8 · answered by Stephan A 1 · 1⤊ 1⤋
In uni-variate there is only one variable or characteristic but in Multivariate there are more then one variable which is related more then one characteristic.
2016-04-28 07:57:27 · answer #9 · answered by AJEET 1 · 0⤊ 0⤋
Univariate
2016-12-17 18:12:43 · answer #10 · answered by Anonymous · 0⤊ 0⤋