Variables and Research Design Flashcards
1
Q
Define:
- Variable
- Continuous variable
- Discrete variable
- Categorical variable
A
- Anything that changes within research
- Can score anything within a particular range
- Cant score decimal, can only score certain values within a particular range
- Allocate things/people into categories
2
Q
What are the 4 levels of measurement
A
- Nominal
- Ordinal
- Interval
- Ratio
3
Q
Define:
- Nominal
- Ordinal
- Interval
- Ratio
A
- Lowest level, frequency counts, represents different categories
- Associated with rating scales, categories put into meaningful order
- Comes from continuous variables, equal distance between scores
- Has an absolute zero (can’t got into negatives), equal distance between scores
4
Q
What are the parametric levels of measurement
A
Nominal and ordinal
5
Q
What are the non-parametric levels of measurement
A
Ratio and interval
6
Q
Define:
- Independent variable
- Dependent variable
A
- Thing we change
- Thing we measure
7
Q
Define:
- Extraneous variable
- Confounding variable
- Quasi
A
- Variables that may influence the study that aren’t being controlled
- Specific type of extraneous variable; relates to both variables that we are interested in
- Natural occurring, can’t control who is in what group
8
Q
Define:
- Between participants
- Within participants
A
- Independent groups
- Repeated measures
9
Q
Describe counter balancing
A
- Reduces bias within study
- Reduces effects of boredom
- 1/2 do condition A then B, other 1/2 do condition B then A
