T-TESTS
Example used in class to teach t-test
Dating app with two different photos
ANOVA is
What is: mean difference between multiple groups
Correlations are not
What is: causation
Formula for regression
The probability of if something is significant or not?
What is, a p-value
Definition of a t-test
What is the - statistic method used to determine if there is a significant difference between the means of two groups based on a sample of data
ANOVA stands for
What is: analysis of variance
What is: linear relationship between two variables
What is: When we want to do more than
just describe the relationship
between two variables… when we
want to model or predict the value
of a variable either because that
value is unobtainable (we can’t
directly measure) or will happen
in the future (grad school GPA).
What would you use to answer this hypothesis:
H: The amount of orca whale videos Kishi watches the happier she is
What is: correlation
Why we use a t-test
What is - to find if there is a significant difference between two groups
Example of why we would want to use an ANOVA
When both variables go in the same direction
What is - a positive correlation
Regressions do more than just look at linear relationship but also...
What is: PREDICTS the change that will occur in your DV when there is a change in your IV
What would you use to answer this hypothesis:
H: The tv show, Peaky Blinders, will make Kishi happier than the tv show, Succession.
what is: t-test
Level of variables for a t-test
DV is interval / ratio
What is: Scheffe's test - differences between groups when the groups are not equal
What is: a negative correlation
r2 and beta weight tell us what?
what is: r2 is variance explained
beta weight is slope of the line
What would you use to answer this hypothesis:
H: There will be a difference in happiness for Kishi when she is eating sushi, Mexican food, and Italian.
What is: ANOVA
What are: independent sample t-test
paired sample t-test
one sample t-test
Example of hypothesis for an ANOVA
What is: ________________________ provide example
3 types of correlations are
What is: Spearman, Pearson, Partial
Types of regressions
What are: Simple regression, multiple regression, stepwise, logistic, hierarchical, lasso, ridge, polynomial
What would you use to answer this hypothesis:
H: The amount of boba Kishi drinks will positively predict how happy she is that day
What is: regression