Correlations Flashcards
1
Q
no correlation
A
- no relationships between the co-varibles
- presnted in a scatter grpah
graph: dots are very spread out, no pattern
2
Q
strengths of correlations
A
- good for starting research
- finding outwhat type of relationship there is
- whether there is a cause and effect or if there is a third varible that hasnt been considered
3
Q
weaknesses of correlations
A
- dosent show the effect of one varible (cause and effect)
4
Q
negative correlation
A
- occurs when as one co-varible increases and the other decreases
- presented on a scattergraph
graph: ends down starts up
5
Q
positive correlation
A
- occurs when both co-varibles increase at the same time
- presented on a scattergraph
graph: starts down ends up
6
Q
hypothesis
A
- a clear statement made at the begenning of a research to predict events
- testable statement
7
Q
what are the 5 types of hypothesis
A
- null hypothesis
- alternative hypothesis
- directional hypothesis
- non-directional hypothesis
- correlation hypothesis
8
Q
correlation hypothesis
A
- directional: there will be a positive/negative correlation between…
- non-directional: there wil be a correlation between…
- no correlation: there will be no correlation between…
9
Q
directional hypothesis (one tailed)
A
- if used for a correlation, it states if it will be a positive or negative correlation
- words like higher, lower, more, less
10
Q
non-directional hypothesis (two tailed)
A
- states that there will be an expected difference or relationship but does not state which direction it will take
11
Q
null hypothesis
A
- no relationship between varible or that were is no effect
- studys try to reject null hypothesis
- you reject it by finding strong statistical or observational evidence to falsify it
12
Q
alternative hypothesis
A
- clearly states what the relationship will be between the IV and DV
- they are alternative to the null
