Non-experimental research methods Flashcards
Define observation
When a researcher watches or listens to participants engaging in the behaviour that’s being studied
Define correlation
A correlation is used to measure the extent of a relationship between two quantitative variables that are neither manipulated by the experimenter
Define naturalistic observations
This is an observation carried out in a natural setting where the observer doesn’t interfere or try influence the behaviour being observed
Strengths of naturalistic observations
- High eco validity (takes place in real-life setting)
- Low demand characteristics (pps aren’t aware they’re being studied)
Weaknesses of naturalistic observations
- Less control over extraneous variables (hard to determine casualty)
- Low replicability (reality of findings can’t be checked)
Define controlled observation
An observation that takes place in a controlled setting, usually behind a one-way mirror so observers can’t be seen
Strengths of controlled observation
- Less extraneous variables (takes place in a controlled environment)
- High reliability (observation procedure can be easily replicated)
Weaknesses of controlled observation
- Low eco validity (setting is artificial like in a lab)
Define structured observation
When an observer records participants’ behaviours according to a predetermined coding system. This can be done through event and time sampling
Define event and time sampling
Event sampling: An observer records every time the target behaviour occurs
Time sampling: An observer records at set time intervals (eg: every 20 mins)
Strengths of structured observation
- Predetermined checklists allows for objective, measurable data that can be collected and statistically analysed
- Allows for more than one observer (due to checklist) which increases reliability
Weaknesses of structured observation
- Predetermined checklists may make observation more restrictive and doesn’t always explain why behaviour is happening
Define unstructured observations
When an observer records participants in a qualitative manner over a period of time without the use of a behavioural checklist
Strengths of unstructured observations
- researchers can collect in-depth, rich qualitative data which can help explain why behaviour has occurred
- observers aren’t limited to prior theoretical expectations
Weaknesses of unstructured observations
- researchers may be drawn to eye-catching behaviour which may not be representative of all behaviours
- more subjective and can’t be comparable across all researchers