Econometrics Questions
Explore questions in the Econometrics category that you can ask Spark.E!
To test a GLM with polynomial explanatory terms, only accept the model if both Type 1 and Type III Tests agree
The fraction/percentage of the variation in the values of y that is accounted for by the least-squares regression line of y on x.
the correlation coefficient (r) ranges in values between _____ and _____.
The stronger the correlation the r value approaches ____________.
A measure of the extent to which two factors vary together, and thus of how well either factor predicts the other.
Regression vs ANOVA which has continuous and which has categorical predictor variables
A variable that has an important effect on the relationship among the variables in a study but is not one of the variables studied.
a statistical measure of the extent to which two factors vary together, and thus of how well either factor predicts the other
In studying height and weight, diet would be a ____________ variable.
For a negative correlation r _______________.
Variables for correlation for a sample and population.
For a positive correlation r _______________.
Between two variables, _____ is the mean of the product of deviations for each variable from their means.
What is the main problem with using repeated measures t-test to study change?
Post hoc contrasts look at differences in ____
For OLS (linear) regression, ____ accounts for violating independence of observations with longitudinal data, (allowing for a more accurate standard error)
For OLS (ordinary least squares / linear) regression, independence of observations is an assumption because not addressing this -->
To conduct a mixed effects model, the database should be in what format?
Which type of coding: for categorical variables, each group compared to a grand mean (mean of all groups aka y intercept); care about what sample size is
What is the main advantage of using a Mixed Effects Model to study change over time?