methods: observations Flashcards
(34 cards)
Define observation
The close and detailed observation of a subjects behaviour in a particular environment, whereby variables are not manipulated.
Give an example of quantitative data gathered from an observation
Tally counts of when behaviours are being shown
Give an example of qualitative data fathered from an observation
- observer narratives of notes on the subjects behaviour
- audio or video recordings to look back on and analyse more closely
- continuous recordings where the observers record everything that happens i detail with a video camera
List the two types of sampling
- event
- time
Describe audio or video recordings
- These are to make notes in retrospect
- audio= quicker than making notes
- gathers a richer range of detail than notes- can ensure that no behaviour being studied is missed- so more valid
Describe observer narratives
- notes are taken during the session
- then go back later and try to collect data
- and discern behaviour patterns from these notes
Describe continuous notes
- where the observers record everything records everything that happens in detail
- usually with a video camera
- richer range of detail than notes
Describe event sampling
- observer records each event that meets a predetermined list of behaviours
- specific behaviours are recorded everything tie they occur
- used when the behaviour of interest is relatively infrequent
- or when you want to capture all instances of a particular behaviour
- e.g. tallying every time the subject scratches their head
Describe time sampling
- the researcher decides on a time interval (e.g. 10 seconds)
- then records what happens when the behaviour is occurring at each interval
- this can provide quantitative data for predetermined behaviours or quantitative through a narrative at these times
- good for busy environments- helps manage large volumes of data
- can give a representative snapshot of behaviour over time without needing to record everything`
- (behaviour of each ppt is recorded at fixed intervals)
Two strengths of event sampling
- high validity as it provides quantitative data that can be statistically analysed and easily compared when reproduced
- high validity- by recording all occurrences of a specific behaviour, this method gives a fuller, more accurate picture- increasing validity
- also is less of a chance that a behaviour being studied is missed (so more accurate picture of behaviour)
Two weaknesses of event sampling
- low reliability- if too many variables to tally, the researcher may gather inconsistent results in how many observed and how many there actually were
- some events may be missed or inconsistently recorded- especially if there is more than one thing happening at once
Two strengths of time sampling
- increased reliability- as behaviours are recorded at set intervals, process is more structured and repeatable- reducing observer bias, increasing reliability (standardised procedure)
- less variables, only recording at specific intervals makes collection of data more accurate, less of a chance of mistakes etc
Two weaknesses of time sampling
- low validity- may miss behaviours that are being studied- not an accurate, full picture of behaviour being studied
- unrepresentative sample- if the selected time intervals are not representative of the full session- the data may not reflect typical behaviour, lowering validity etc
What are the two observational methods
- naturalistic (unstructured)
- controlled (structured)
Describe structured/controlled observations
- can occur in a natural or lab setting
- focus of the observation is predetermined beforehand- produces quantitative data
- researcher often intervenes to cause an event- so can be recorded more easily, can establish cause and effect relationship
- high structured allows the researcher to decide on precise ways of observing the different categories
- semi-structured involves the researcher starting with an agenda of what will ne observed and how but collecting the data is done less systematically
- has been set up in a situation by the experimenter specifically for observation- so more easily recorded
- uses a standardised procedure
strengths of a structured/controlled observation
- high reliability- due to having a standardised procedure, with high control over EV’s due to researcher manipulation of environment, meaning it can be replicated easily to test for consistency
- high validity- control over EV’s means that less chance of confounding variables, easier to establish cause and effect relationship
- avoids problems with consent/deception as often they take place in a public setting where people would expect to be seen by others and have permission/informed consent from the ppts as they are aware they are participating in this type of observation
- can still have high ecological validity if they take place in controlled natural setting- so also can still have high mundane realism
weaknesses of a structured/controlled observation
- lower validity- demand characteristics are higher risk in this type of observation as ppts are aware they are being observed- therefore may changed how they would normally behave which lowers the validity of the data
- low ecological validity- if in an artificial environment
- risk of observer bias when collecting the data- this can occur when the researchers don’t have any guidelines on how to record the behaviour
Describe a naturalistic/unstructured observation
- involves observing subjects in their natural environments
- does not involve any intervention and only looks at when the behaviours occur in a a natural setting
- limited manipulation of variables due to the lack of intervention
- can collect both qualitative and quantitative data
- often used in situations where conducting lab research is unrealistic or unpractical
- or would cause demand characteristics
Strengths of a naturalistic/unstructured observation
- high ecological validity- ppts in their natural setting and environment so reflective of natural behaviour
- provides rich qualitative data which may be missed with intervention/manipulation of procedure
- often the only practical/ethical way of carrying out the research due to the sensitive nature of the study or setting e.g. antisocial behaviour that can’t be created
- high validity- lack of demand characteristics due to not aware they are participating
- avoids problems with consent and deception as often this type of observation takes place in a public setting- where people would be expected to be seen by others
Weakness of naturalistic/unstructured experiments
- low reliability- no standardised procedure, lack of control results in inability to replicate
- cannot produce cause and effect due to the lack of control over the setting-confounding variables present
- ethical issues of invasion of privacy - unaware they are being observed and having their behaviour recorded
- risk of observer (subjective) bias when collecting the data- don’t have any guidelines on how to record the behaviour
State the two types of observational design
- overt observation
- covert observation
Describe an overt observation
- the researcher is open about their intentions to observe subjects behaviours
- information they are being observed is disclosed to them
- ppts have given their permission for their behaviour to be observed- informed consent
- allow open note taking and the use of equipment such as video recordings
Describe covert observations
- subjects in the observation do not know that they are being studied
- conducted in public settings
- the researcher is undercover (may pose as a subject)
- researcher immerses the self in a community they are studying
- lack of informed consent
Strengths of an overt observation
- high validity due to it being easier to record data at the point of it happening - so less likely to miss things, more accurate picture of behaviour
- high ethical considerations- informed consent, know they are being studied so have given informed consent and have the knowledge of the right to withdraw