Chapters 8&9 Flashcards
- participants are in different conditions
- Can’t place people in their condition, it’s predetermined
- To show causation you have to create equivalent groups through random assignment
between subjects
- Requires fewer participants
- Sensitive to small differences between means
- Use counterbalancing
Within Subjects
independent variable
factor
2 or more independent variable
factorial design
manipulation of IV
Levels
What participants experience
Conditions
correspond to participant condition
cells
effect of single of IV
main effect
- main advantage of factorial design
- effect of 1 IV depends on the level of another IV
Interactions
2 x 2
IV #1 has two levels and IV #2 has two levels
at least 1 w/in subject and 1 btwn subjects
Mixed Factorial
at least 1 subject and 1 manipulated
P x E
at least 1 w/in subject, 1 btwn subject, 1 subject var. and 1 manipulated var
Mixed P x E
N
overall sample size
n
sample per cell
Response Bias
General tendency to answer all questions the same way
Response Acquiescence
General tendency to response more positively
Linguistic Ambiguity
Using outdated language or language that might be confusing
Double Barreled Questions
Asking two questions in one question