✓ Observational Designs (AO1 + AO3) Flashcards
What are the 2 types of Observational Designs?
structure/unstructured
event sampling/time sampling
What is a Structured observational design?
researcher uses ‘schedules’ to document behaviour - time or event sampling
behaviour is organised into behavioural categories, usually in a tally chart
Positives of Structured observational design?
- easier to compare between ppts
- coding is more systematic = less confusing
- greater inter-observer reliability
Negatives of Structured observational design?
- low internal validity bc some behaviour may be missed due to time/event sampling
- lacks finer details
What is an Unstructured observational design?
every instance of the behaviour is recorded and described in as much detail as possible
Positives of Unstructured observational design?
- data much richer in detail
- higher internal validity
Negatives of Unstructured observational design?
- prone to observer bias bc lack of objective behaviour categories
- researcher records behaviour of subjective value to them
- usually low inter-rater reliability as a result
What is Event Sampling?
observer records every time the target behaviour occurs e.g. using a tally
Positives of Event Sampling?
- every behaviour of interest to the researcher will be counted throughout the observation
Negatives of Event Sampling?
- much more time-consuming
- possibility for behaviours to be missed if there is too much happening at once
What is Time Sampling?
observer records behaviour at prescribed intervals e.g. every 10 secs
Positives of Time Sampling?
- easier
- less time-consuming
Negatives of Time Sampling?
- target behaviour could happen in between the time intervals + so could be missed
What are Behavioural Categories?
- when psycholgists decide which specific behaviours are to be studied in an observation
- involves breaking the target behaviour down into components that can be observed + measured
What should Behavioural Categories always be?
operationalised -
super important that behavioural categories are operationalised (made clear what exact behaviours you are looking for)
e.g Bandura’s experiment -
behavioural categories = kicked the doll, punched the doll etc.