Observational techniques Flashcards
Naturalistic observation
Behaviour observed where it would normally occur.
Naturalistic observation strength
+ High external validity (real life)
Naturalistic observation weakness
- Low internal validity (no control over variables)
Controlled observation
Some control over environment (manipulation of variables)
Controlled observation strength
+ High internal validity
+ extraneous variables may be controlled
Controlled observation weakness
- Low external validity (except if covert)
Covert observation
Observing behaviour/study without participants knowledge
Covert observation strength
+ No demand characteristics (valid data as participants don’t effect study as they don’t know they are being studied)
Covert observation weakness
- Unethical
Overt observation
Observing participants behaviour with their knowledge and consent
Overt observation strength
+ No ethical problems
Overt observation weakness
- Participants behaviour may be affected
Participant observation
Researcher joins the group
Participant observation strength
+ Internal validity
Participant observation weakness
- May lose objectivity