Lecture 4

Stats 4 success

no

The null hypothesis claims that there is ______ difference between the 2 groups

probability, no

The P-value is the _______ of obtaining a difference as big as the one observed when there actually is _____ difference

0.05

What is the normally set cut-off P-value?

1. T-test → 2 groups (ex: treatment vs. control group)

2. ANOVA → more than 2 groups (ex: no intervention group, therapy group, medication group)

When we try to test for differences between groups, what are the 2 tests we can use?

causality

A correlation, or the relation between 2 continuous variables implies an association but no ______

multiple

When there are multiple independent variables, we can use a _______ regression

Protective
Protective-stabilizing	The factor stabilizes the outcome, regardless of the level of the risk factor you are exposed to
Protective-enhancing	When you are exposed to the risk factor at high levels, the presence of the protective factor is even more beneficial
Protective-reactive	The protective factor protects well at low levels of risks but its positive effects decrease as the level of risk increases

What are the 4 different types of protective factors and their characteristics?

association

A main effect is the ______ between an independent variable and dependent variable

The association between one IV and the DV varies as a function of the other IV

What does it mean when there is an interaction/moderation?