Correlation Flashcards
Name the 7 forbidden words in correlation
- difference
- effect
- affect
- change
- IV
- DV
- experimental design
Describe positive correlation
As one co-variable increases the other co-variable increases too
Describe negative correlation
As one co-variable increases the other co-variable decreases
What is no correlation
There is no definite trend between co-variables
Limits of scatter graphs
- can’t justify that co-variable X has an effect on co-variable Y
- can draw findings (raw data) but not conclusions (inference from raw data)
What is a research question
A broad question about concept being investigated
What is a research aim
Identifying a more specific concept within the question
What does research aim have an impact on
Research method
Name two research methods
- correlations study
- experiment
Correlation study example
- ‘relationship’
‘Whether energy levels are RELATED to hours slept’
Experiment example
- ‘cause and effect’
- ‘EFFECTS of chocolate consumption on levels of happiness’
What ethics are considered in correlation studies, explain
- Confidentiality (sensitive data can’t be traced back to where it came from)
- protection from harm (questions don’t cause participants harm)
What is a two tailed hypothesis
No expectation is being conveyed as to the direction the relationship might go in
How to write a two tailed hypothesis
‘There will be a significant correlation between…’
What is a one tailed hypothesis
There is an expectation that the result will go in a particular direction
