Research Methods Flashcards
Ppt Observation
The Rschr becomes part of the group. So they have firsthand experience of the bhvr being tested. The rschr is unknown to ppts bc they are unaware they are being studied.
Ppt observation strength
Ppts act naturally because they are unaware that they are being studied leads to less demand characteristics
Ppt observation weakness
It is unethical bc no consent or right to withdraw is given
Or
It can be open to observer bias bc the Rschr may develop positive or negative rship with the group which could effect results
Non ppt observation
Rschr is not part of the group being investigated. They simply observe bhvr as it happens
Non ppt observation strength
Bhvr occurs naturally bc ppts don’t know they are being investigated leads to less demand characteristics
Non ppt observation weakness
Observer bias Rschr may interpret bhvr differently to how it is intended
Natural experiment
An exp carried out in a natural environment however, the Rschr has no control over the IV. The IV is the actual event and the DV is the situation before and after the event.
Natural experiment strength
Low chance of demand characteristics bc ppts are unaware they are being studied and bc there is no control of a naturally occurring event, they will not know the rsch is taking place.
Natural exp weaknesses
Due to lack of control, cause and effect rships cannot be established. It can never be clear whether the naturally occurring event caused bhvr or whether it was extraneous variables.
Lab exps
An experiment that takes place in a controlled, artificial setting. The IV is manipulated by the Rschr to see the effect on the DV so a cause and effect rship can be established.
Lab exps strengths
Due to high levels of control cause and effect rships can be established. Therefore it is clear that the IV caused the DV and extraneous variables were not responsible
Lab exps weaknesses
High chance of demand characteristics bc ppts are aware they are being studied and as there are high levels of control in an artificial setting they will know the rsch is taking place
Case study
An in depth and detailed study of an individual or very small group of people who have certain characteristics that the Rschr wants to investigate. They are longitudinal and informative, providing qualitative info about the ppts.
Case study strengths
Provides rich qualitative info that gives great detail on bhvr and may otherwise have been missed
Case study weakness
Social desirability may occur as the ppts may want to look good to the Rschr so may lie in their answers which makes the rsch unreliable