Multiple Regression
OLS
What is ordinary least squares regression?
What is the first determining factor when deciding which statistical tool is appropriate?
This hypothesis always amounts to nothing.
What is a null hypothesis?
-1
What is, in general, how much statisticians reduce degrees of freedom each time they use data to calculate something that they intend to use to infer about the population?
Wednesday, 16th May
What day is the final exam?
This assumption means that the independent variables have no in-group correlation.
What is no multi-collinearity?
Used when two groups of participants are tested more than once to determine if there is a difference in their means.
What is a t-test for dependent samples?
This is chosen largely by disciplinary tradition.
What is the level of risk associated with the null hypothesis?
Varies based on the test statistic in play.
What are degrees of freedom?
8:00-10:00
What time is the final exam?
States that all errors have the same variance.
What is the assumption of homoscedasticity?
Standing to the side, this test is used to examine the difference between a sample and a population.
What is a one sample Z test?
This is used to determine the significance of a value obtained by a statistical test.
What is a critical value?
In reporting results, degrees of freedom are conventionally found inside these.
What are parentheses (or round brackets)?
In our regular classroom
Where is the final exam?
In multiple regression, the variable caused by all the others is called this.
What is the dependent variable?
This test is used to look at the differences between more than two groups who are only tested once.
What is a simple analysis of variance?
If a finding is not statistically significant, then it is always the same as this.
What is 0?
Sample size
What is the starting point for subtracting degrees of freedom when the test does not involve grouping?
Working with others
What is strictly prohibited on the final exam?
On a regression line, this is the point where the line crosses the Y-axis.
What is a the intercept?
A tool used involving multiple groups when parametric assumptions do not hold.
What is Chi Square?
The result of computing a test statistic using a formula (or SPSS).
What is the obtained value?
The first number inside the brackets in an F test refers to this.
What is the number of groups?
90 minutes
How long is the final exam designed to take?