What is a correlational study?
When the researcher investigates a relationship between 2 variables, called co-variables. There is no IV or DV
What is the process of carrying out a correlational study? (4)
Define positive, negative and no correlation:
Positive - When one variable increases, the other variable increases
Negative - When one variable increases the other decreases
No - When there is no relationship between the co-variables
Is this an example of positive or negative correlation:
The more aggressive the parents, the more aggressive the children are
Positive
Is this an example of positive or negative correlation:
The hotter the temperature, the fewer clothes people wear
Negative
Is this an example of positive or negative correlation:
The fewer sweets eaten, the fewer fillings needed
Positive
Is this an example of positive or negative correlation:
The colder the weather, the higher people’s fuel bills
Negative
What is the maximum range of the correlation coefficient?
-1.0 to 1.0
What is are weaknesses of using correlational studies? (3)
What are strengths of using a correlational study? (3)
What is an observation?
When the researcher observes and records what they see
What are the 4 types of observation?
What are participant and non-participant observations?
Whether the researcher becomes a member of the group whose behaviour they are measuring (participant), or the researcher remains outside of the group whose behaviour they are observing (non-participant
What are the strengths and weaknesses of using a participant observation?
STRENGTH
- The researcher can get in-depth data as they are close the the participants and so are unlikely to overlook or miss any behaviours
WEAKNESS
- The researcher being part of the group could affect the objectivity
What are the strengths and weaknesses of using a non-participant observation?
STRENGTH
- Researchers are more objective as they are not part of the group
WEAKNESS
Researchers may not gain as much information or miss behaviours
What are naturalistic and controlled observations?
Whether the researcher is watching and recording behaviour in the setting which it would normally occur (naturalistic), or watching and recording the behaviour within a structured environment (controlled)
What are the strengths and weaknesses of using a naturalistic observation?
STRENGTH
- High ecological validity as behaviour is studied in an environment it would occur normally, so findings can be generalised to real life
WEAKNESS
- Hard to replicate due to low control of variables
What are the strengths and weaknesses of using a controlled observation?
STRENGTH
- Easier to replicate due to high control of variables
WEAKNESS
- Unnatural environment so behaviour is less natural too
What are covert and overt observations?
Whether the observers are visible to the participant and they are aware they are being observed (overt), or the observer is not visible and participants are not aware they are being used in a study (covert)
What are the strengths and weaknesses of using a covert observation?
STRENGTH
- Behaviour is more natural
WEAKNESS
- Less ethical as participants are not aware they are taking part and cannot give informed consent
What are the strengths and weaknesses of using a overt observation?
STRENGTH
- More ethical as it is possible to obtain informed consent
WEAKNESS
- SDB may be present so the findings may not be applicable to real life
What are structured and unstructured observations?
Whether the researcher is observing all behaviour that is seen (unstructured), or using systems to organise observations (structured)
What are the strengths and weaknesses of using a structured observation?
STRENGTH
- Makes the recording of the data easier and can replicate
WEAKNESS
- Important information may be missed if it hasn’t been identified as a category
What are the strengths and weaknesses of using an unstructured observation?
STRENGTH
- More detailed than structured
WEAKNESS
- There may be too much to record, so there is a greater risk of observer bias as they may just write down behaviour that meets their aims