This test is used to determine if the assumption of homogeneity of variance for linear regression is met.
What is Levene's Test?
100
β0
What is the intercept of the linear regression equation?
100
How logistic regression is different from linear regression.
What is:
Does not assume linearity in relationship between IV and DV.
Does not require normally distributed variables.
Does not assume homoscedasticity.
Does require observations to be independent.
Does require that IV be linearly related to the logit of the dependent.
Must have 3/5
100
A single test that is performed to detect any of several possible differences
What is the omnibus test?
100
If you have want to know the relationship between two continuous variables,
Then you _________.
What is run Bivariate Correlation to calculate Pearson Correlation Coefficient.
200
The change you make to data when you find positive skew and unstable variance.
What is a square root transformation?
200
β1
What is the regression coefficient for the predictor, the slope, and describes the relationship of variable X in relation to outcome Y?
200
Interpretation of OR=11.0
What is the odds of exposure among cases are 11.0 times the odds of exposure among controls?
200
Calculated using the grand variance and total data points.
What is the Total Sum of Squares?
200
If you want to find out if adding the new group of variables better predicts your outcome, then _______.
What is run a partial F-test?
300
Two ways (in detail) to test for normality.
What is Visually with graphs and Numerically with the Kolmogorov-Smirnov test?
300
Interpretation of R Squared = .335
What is 33.5% of the variability in the outcome is accounted for by the predictor variable?
300
If OR=1.13,
Predictor = cigarette tax,
Outcome = smoker status
What is the odds of being a smoker increasing by 1.13 for every one unit increase in cigarette tax?
300
Sources of between groups effect with 2 groups
What are...
Effects due to the main effect of A,
Effects due to the main effect of B, and
Effects due to the interaction of A and B?
300
If you run logistic regression but don't know exactly what variables you should include as predictors, then.....
What is use a stepwise method?
400
The mechanisms used to test for linearity in logistic regression.
What is test an interaction term with each continuous variable and its logit and if the interaction is significant, then the main effect has violated the assumption of linearity of the logit.
400
An estimate of an interval in which future observations will fall, with a certain probability, given what has already been observed.
What is a prediction interval?
400
Model Chi-Square
What is the statistic that tells whether the model with predictors has less lack of fit than the model with only the intercept?
400
The sum of the squared differences between each group mean and the grand mean.
What is the model sum of squares?
400
The method used to answer: which of four treatments work best to reduce symptoms of depression?
What is ANOVA
500
Information found through running collinearity diagnostics.
What is tolerance and VIF to test the assumption of Multicollinearity in Logistic Regression?
500
Measures the relationship between two variables, controlling for the effect that a third variable has on them both.
What is Partial Correlation?
500
Model for a categorical outcome with more than 2 levels with continuous or categorical predictors
What is Multinomial Logistic Regression?
500
The equation for Two-way ANOVA.
What is Yijk = u + ai + Bj + (aB)ij + Eij
500
If you want to find out where the differences occur with an ANCOVA, then _______