Validity Flashcards
What affects validity?
Confounding variables
Extraneous variables
Realism
Generalisation
What is internal validity?
What goes on inside the study, if the study has tested what it is intended to
What is external validity?
Ecological validity
Population validity
Historical validity
What are threats to validity?
Demand characteristics
Researcher bias
What are demand characteristics?
They find out the aims and act the way the researcher wants them to
In what method can demand characteristics be caused?
Repeated measures- they will guess the aims
What is researcher bias?
Researcher encourages the participant to act a certain way to fit the research
What are the indirect investigator effects?
May operationalise the measurement to fit the study
How would you deal with these problems?
Single blind procedure
Double blind design
Experimental realism
What is a single blind design?
Participant is not aware of the research aims, or what condition they are in
What is a double blind design?
Both the participant and researcher are blind to the procedure
What is experimental realism?
Participant pays attention to the task and forgets that they are being observed
What are other extraneous variables?
Participant variables
Situational variables
What are situational variables?
Features of a research situation that may influence participant behaviour
What is face validity?
If the questions are related to the research
