observational designs Flashcards
observer bias
Observer bias happens when a researcher’s expectations, opinions, or prejudices influence what they perceive or record in a study.
behavioral categories
when a target behavior is broken down into components that are observable and measurable
-there should be no need to infer
-researchers must include all the ways in which the target behavior may occur within their behavior checklist
sampling methods (methods to record behavior)
event sampling and time sampling
event sampling
this involves counting the number of times a particular behavior is carried out by the target group or individuals researchers are watching
event sampling strength
its good for infrequent behaviours that are likely to be missed if time sampling was used
event sampling weakness
if complex behaviours is being observed important details of the behaviour may be overlooked by the observer
time sampling
involves recording behaviour within a pre-established time frame
how is time sampling carried out
e.g the researcher will set a regular time interval of 30 seconds where they record the behaviour for 30 secs and continue to do this until the observation is complete
-the researchers will then watch the recordings and make note of all the behaviours that align with the behavioural category
when is time sampling most suitable
when there are multiple behaviours that the researcher wants to observe
and when these behaviours happen very frequently
time sampling strength
-reduces the number of observations that need to be made=recordings can be watched back repeatedly
-most appropriate for recording ongoing behaviours that are likely to occur in a social setting e.g conversations,playing together
time sampling weakness
-the small amount of data collected within a time frame may be be unrepresentative of the observation as a whole
unstructured observations
consists of continuous recording, where the researchers write down everything they see during the observation
strength of unstructured observation
-more richness and depth of detail=qualitative data produced
weakness of unstructured observations
-produces qualitative data which is more difficult to record and analyse
-greater risk of observer bias e.g only record eye catching behaviour
structured observations
where the researcher quantifies what they are observing using a predetermined list of behaviours and sampling methods