Lesson 2: Observational Techniques Flashcards
observation definition
when a researcher watches or listens to participants engaging in behaviour that is being studied
non-participant observation
when the researcher does not get directly involved with the interactions of the participants
participant observation
when the researcher is directly involved with the interactions of participants
covert observation
- the psychologist goes undercover and does not reveal their true identity
- may even give themselves a new identity
- the group does not know they are being observed
overt observation
the researcher watches and records the behaviour of a group that knows it is being observed by a psychologist
naturalistic observation
a researcher observes participants in their environment and there is no deliberate manipulation of the independent variable (IV)
naturalistic observation advantages
- participants are usually unaware that they are being observed (covert observation) so there is reduced chance of observer effects which occur when pps change their behaviour because they know they are being observed, invalidating the results
- high mundane realism and ecological validity
- useful when the deliberate manipulation of variables would be impractical or unethical
naturalistic observations disadvantages
- impossible to have any control over extraneous variables
- problematic to try to determine cause and effect
- risk of observer bias which occurs when observers know the aims of the study, or they hypotheses, and this knowledge usually influences their observations
controlled observation
researcher observes participants in a controlled environment and this allows for manipulation of the independent variable
controlled observation advantages
- cause and effect can be determined
- extraneous variables can be accounted for
controlled observation disadvantages
- lower mundane realism and ecological validity
- observer effects could occur as pps usually know they are being observed (overt observation)
- risk of observer bias
operationalised behavioural categories
- specific and observable behaviours to be recorded during an observation
- represent the more general construct under the investigation
what do behavioural categories do
- allow observers to tally observations into pre-arranged groups
- provide a clear focus for the researcher
- enable the proposal of a testable hypothesis
- allow for a more objective /scientific data recording
- provide data that is easier to quantify/analyse
- should result in greater reliability
observer bias
when the observer knows the aims of the study, or hypotheses, and this knowledge influences their observations
how to avoid observer bias
inter observer reliability
- using two observers who agree beforehand on their interpretation of the behavioural categories
- each observer than observes pps at the same time, but records observations independently
- recordings will be correlated using an appropriate statistical test to ascertain their level of agreement
- if observers agree, the study has inter-observer reliability
intra-observer reliability
- when an observation is video recorded so that is can be watched several times