Research Methods Flashcards
What is an experiment?
A way of conducting research in a controlled way
What is the aim of a laboratory experiment?
To control all relevant variables except for the independent variable
What is the independent variable?
The variable that you alter
Where is a laboratory experiment conducted?
In an artificial setting
What are three strengths of a laboratory experiment?
- High level of control
- Easy to replicate
- Possible to establish causal relationships
What are three limitations of a laboratory experiment?
- Artificial setting means low ecological validity
- Demand characteristics
- May be ethical issues
Where are field experiments conducted?
Outside the laboratory in a natural environment
What are two strengths of field experiments?
- High ecological validity as natural setting
- Minimised demand characteristics
What are two limitations of field experiments?
- Low levels of control
- May be ethical issues
What is a natural experiment?
When researchers look at how an independent variable that is not manipulated affects a dependent variable- the independent variable is an event that occurs naturally
What are three strengths of natural experiments?
- Possible to study variables that would be unethical to manipulate
- Demand characteristics unlikely
- High ecological validity
What are two limitations of natural experiments?
- Hard to establish causal relationships
- May be ethical issues
What is involved in a quasi experiment?
Researchers aren’t able to use random allocation to put participants in different conditions because the independent variable is normally a feature of participants
What are two strengths of quasi experiments?
- High level of control
- High ecological validity
What are two limitations of quasi experiments?
- No random allocation so confounding variables may alter results
- Hard to establish causal relationships