- Created by: acornes15
- Created on: 13-11-18 16:15
Experimental research vs observational research
- Take the world as it exists - comparisons between individal or aggragate units
- Researcher has no control over independent variable
- Intervention by the researcher
What is an experiment?
Allows for systematic intervention upon study participants
Tests causal relationships between factors
- Appropriate RQ
- Causal hypotheses
- Carefully designed conditions/treatments
Subjects make freely cognitive decisions, independent of researcher
1) Random allocation to groups
2) Group 1 = control, Group 2 = treatment, Group 3 = treatment
Issues with laboratory experiments
- External validity
- Reactiveness of participants
- Lasting impact?
Real world environment
- Natural setting
- Clarify causality
Naturally occurring events treated as interventions
- Avoids artificiality
- Ethical responsibility
- Issue of causality?
Ethics in experimentation
Rules that govern the researcher's conduct
Responsibility that the research doesn't harm participants (physically or mentally)
e.g Zimbardo Stanford prison experiment, biting finger nails etc.