- 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?