Research Methods and experiments Flashcards
Explain informal consent:
When the participants are told the aim and what will happen in the study. If told this they may change their mind and behaviour
Problem with informal consent and name study to back it up
They don’t fully understand what it takes to participate in the study that’s why not many drop out
Epstein and lasagna(1969) found that only a third of volunteers understood what they had agreed to participate in
Explain deception:
Participants are told the aim of the study but they are told the false aim in order to gain other results
Deception can lead to no trust In the psychologist and may lead the participant to
Withdrawing from the study
Explain right to withdraw:
Participants have the right to withdraw at any point in the study
By the participant withdrawing during the study it could lead to
Bias results
How would we get bias results from participants withdrawing during the study
People who stay are more likely to be obedient and hardy so the study only affects them
Why might confidentiality be hard
Because the researcher is likely to want to publish the results
Where’s might participants want privacy
Not to be observed in their homes or in public places
Name the ethical issue of Zimbardo et Al study
Participants weren’t informed they would be arrested at their own homes. They weren’t also aware of the psychological harm
How are ethical issues dealt with now
- Ethical committees set up
- ethical guidelines
- punishment
name a way of dealing with deception
Debriefing
What is a lab experiment?
An experiment carried out in a specialised environment for the purpose of the study
Strengths of a lab study(3)
- study and results are repeatable
- easy to get informed consent as they know they are taking part
- easy to control all variables
Weakness of a lab experiment
- demand characteristics
2. No real life application
What is a field experiment?
An experiment done in a natural environment
Strength of field experiment
More real life application and higher internal validity because no participant effect
Weakness of field experiments
- Less control of variables as its out in the open
2. ethical issues as its hard to get informal consent
What is a natural experiment
An experiment conducted in a natural environment and the independent variable is naturally manipulated
Strength of a natural experiment
1.honest behaviours (no demand characteristics)
Weaknesses of natural experiment
- Ethical issues such as privacy,confidentiality and informed consent
- cant manipulate variables
What is the independent variable
What you are trying to measure
What is the dependent variable
What will change in the study
What’s a directional hypothesis
A hypothesis which announced which way the results are expected to swing
E.g people who do more homework without the tv on get better results than people who do homework with the tv on