Observational Techniques and Observation Design Flashcards
what is a naturalistic observation?
-An observational technique, where behaviour is observed and its natural context, without intrusion by the person who is doing the observing.
-There is no direct population of variables
-The emphasis is on how people behave in natural situations
While the strength of naturalistic observations
-High Ecological Validity
-Study behaviour where variables can’t be manipulated
Why do naturalistic observations have high ecological validity?
-as the participants are unaware of the observation and behaving in their natural environment
-there is less chance of demand characteristics influencing the participants behaviour (in lab/ctrled observation- potential for artificial behaviour)
why can you study behaviour where variables cannot be manipulated in naturalistic observations? (Strength)
-Data talk be collected from participants who cannot be tested in other ways e.g. babies and when manipulation is unethical or impractical
what are the limitations of naturalistic observations?
-observer bias (investigator effect)
-lack of control
why may naturalistic observations have observer bias?
-The observer may see what he she expects to see
-Different observers mess, different things which leads to lower inter-observer reliability
why do naturalistic observations having a lack of control mean?
no control of variable therefore, replication is impossible
-Means it is hard to establish external validity
what is a controlled observation?
-Where the researcher attempts to control certain variables
-control of the environment can occur if the observation is conducted in the laboratory
what is an example of a controlled observation?
Strange situation
what are the strengths of controlled observations?
-Time saving
-Preliminary research
Why is a controlled observation time saving?
it is possible to manipulate the situation, and therefore you do not have to wait for the desired behaviour to be shown
-in this way, the control observation is a quicker more economical method than the naturalistic observation
what is preliminary research a strength of a controlled observation?
-provides a means of conducting preliminary research to develop new hypothesis for future investigations or may help prevent the time being wasted in carrying out unrealistic experiments.
What are the limitations of controlled observations?
-lower ecological validity
-observed bias (same as naturalistic observation)
why may controlled observations have lower ecological validity?
-participants behaviour may change because they know they’re being observed
-The full behaviour may not be natural which lovers ecological validity, compared to the natural observation
What is a covert observation?
Participants are unaware they are being observed
what is the strength of a covert observation?
High ecological validity as behaviour is more natural as the participants are unaware they are being watched
What is the limitation of a covert observation?
-Ethics may be questionable due to invasion of privacy and lack of informed consent- you cannot breach ethics