Types Of Experiments Flashcards
What does experimental methods mean?
Refers to the method used to carry out the experiment
There are three main types of experiment lab field and natural
What is laboratory experiment?
Conducted in a highly controlled environment
Example Asch
What is an advantage of a lab experiment?
Extraneous variables are closely controlled Increasing the internal validity
It’s a standardised procedure, increasing the reliability
What is the disadvantage of lab experiment?
Artificial nature of the set up and tasks so not reflective in real life lacks Mundane realism which reduces the external validity
Participants are aware they are being tested so might show demand characteristics
What is a field experiment?
The experiment to manipulate an IV in a more natural setting/more every day setting
Example Piliavian got confederate to collapse on train once smelling of alcohol othe time with walking stick more valid but concent
What is an advantage of a field experiment?
Higher mundane realism than lab
Higher external validity
Participants are aware they are being studied don’t show demand characteristics
Disadvantages of a field experiment
Hard to control the extraneous variables like time of day or how busy it is
Ethical issues are raised because participants are unaware that they are being studied
What is a natural experiment?
Experimental studies, the effects of a naturally occurring IV
An example Sperry split brain research
What is a advantage of a natural experiment
High external validity
Study something that previously unable to manipulate due to ethical reasons
A disadvantage of an natural experiment
Less control over extraneous variables
What is quasi experiment
IV is based on existing differences between people
For example, gender age
What is an advantage of quasi
Can be tested in scientific conditions
Increase the scientific credibility
Disadvantage of quasi
Participants can be randomly allocated to conditions this introduces confounding variables
