Linear models and multiple regression Flashcards
residual
variation from regression line (line of best fit), tests underlying assumptions, can be positive/negative, normally distributed/homogenous
homogenous residuals
variance around regression line is equal for all predictor variables
multiple predictor variables
multiple regression lines, means residuals are closer to the line
two way anova
type of multiple regression, both predictors are categorical, calculates residual variance and works r(2)
multiple linear regression
can be categorial/continuous, calculates residual variance and r(2)
linear models
1 or many predictor variables, response variable always continuous
linear regression
1 predictor a continuous variable
t test
1 predictor and factor with 2 levels
one way anova
1 predictor and a factor with 3 or more levels, compares 3 or more data sets