Research Methods Flashcards
What is informed consent?
Experimenter reveals the true aims of the study and what it will entail so P can make an informed decision
Why is withholding information or providing false information seen as deceitful?
Ps are not able to give informed consent
What is the right to withdraw?
Participants should always hold the right to withdraw if they feel uncomfortable or distressed
Why is protection from psychological and physical harm hard to guarantee?
It is difficult to avoid distress with more important psychological issues
What are the ethical guidelines?
Guidelines informing psychologists on what behaviours are acceptable and what are not
Why do the ethical guidelines take A GENERAL APPROACH?
It is difficult to cover every conceivable issue
What is an ethics committee?
A committee that must approve a psychological study before it begins
What will an ethics committee look at?
Possible ethical issues, benefits to conducting the study and possible costs
What is debriefing?
Participants will be informed everything about the study after it has taken place, giving them to opportunity to ask any questions
What is presumptive consent?
Researchers can gain informed consent by asking a small sample group whether they feel a planned study is acceptable. Psychologists can then assume that the real Ps would feel the same way
What is a hypothesis?
A statement or prediction of what the experimenter expects to happen
What is a null hypothesis?
Predicts no link between variables
What is a directional hypothesis?
Predicts a link between two variables in a particular direction
What is a non directional hypothesis?
Predicts a general relationship
What is operationalism?
Changing the variables in the hypothesis so that another experimenter can tell the conditions of the IV and how the DV was measured exactly
What is the DV?
Variable that is measured
What is the IV?
Variable that is manipulated/changed
What is an extraneous variable?
An undesirable variable that can cause a change in the DV
What is order effects?
Results of an experiment can be affected by the order they were presented (fatigue or practice effects)
What is investigator effects?
Cues from the experimenter (approval of a certain behaviour) and leading questions can lead to a participant behaving in a way they feel is most desired
What is demand characteristics?
An aspect of the situation can trigger a predictable response
What is participant reactivity?
Participants may actively seek cues about how they should behave, leading to them guessing and changing their behaviour
What are two ways of dealing with situational variables?
1) Standardised procedures
2) Double blind trials
What are pilot studies?
Where the study is ‘practised’ before the real event
What are 3 reasons why an experimenter may conduct a pilot study?
1) To ensure there are enough controls so participants are not affected by other variables
2) To ensure the task is not too difficult or easy
3) So they can be sure the research will work
What is the independent groups design?
Different participants are allocated to different groups with different experimental conditions
What is one strength and two limitations of the independent groups design?
+ No order effects
- No control over participant variables
- Twice as many Ps needed