- 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
- Purpose of centering (change 0 point by subtracting mean from mean of column)
- For regression equation, Y = b0 + b1x1 + u0 + u1 + e1What are the random effects?
- The dependent variable is also called the __________ variable.
- Which of the following is a pre-specified cut-off to determine statistical significance for a hypothesis test?
- What is the main advantage of using a Mixed Effects Model to study change over time?
- Bivarite data is typically represented with a ____________________ plot.
- Medication and pain is an example of a _______________ association.
- For sequential (hierarchical) entry method, decide on entering predictors into the regression equation based on _____
- In a scatter plat the x-axis is the _________ variable and the y-axis the ______ variable.
- For AIC/BIC, the _____(lower/higher) the # the better
- If the model doesn't converge, could try removing a component of the ___ model
- Data Consisting of two variables, an explanatory and a response variable, usually quantitative.
- If you're doing a regression and there's an interaction, the effects are ____ rather than main effects
- A cause and effect relationship in which one variable controls the changes in another variable.
- A variable (often denoted by y ) whose value depends on that of another. The measurable effect, outcome, or response in which the research is interested.
- True or False. Some times out labeling of x and y-axes is arbitrary because both variables are interdependent for example tree height and girth.
- A characteristic of TICs, Time-Invariant Covariates, in longitudinal studies is that it....
- MCAR vs MAR vs MNAR - which is biased and reflects a systematic reason data is missing
- Do you center for categorical variables?