Non-Experimental methods Flashcards
Correlational analysis
A statistical technique that looks at the strength and type of relationship between two variables.
Correlations can be positive or negative.
Naturalistic observation
Watching people in a natural environment.
Researchers produce a table of ‘behavioural categorties’
They use time sampling or event sampling.
Questionnaire survey
List of closed questions given to people to fill in
Produce quantitative data
Interviews
Face to face interaction, can be structured, semi-structured or unstructured.
Case studies
An in depth study of one individual or a small group of people. Involves interviewing them or those that knew them and collecting data from their life.
Correlational analysis pro + con
+easy to measure the relationships between two variables
-correlation does not mean that one causes the other
Naturalistic observation pros + con
+increased ecological validity
+no demand characteristics
-low control of extraneous variables
Questionnaire pros
+Quick and easy way of collecting data
+Easy to analyse the data (closed questions)
Questionnaire cons
- Social desirability bias (people lying to seem more positive)
- Participants may not understand and researcher is not present
- People may have different interpretations
Interview pro + cons
+in depth analysis (more detailed answers)
- difficult to analyse (more information)
- Social desirability bias (participants may feel more pressured)
Case study pros + con
+in depth analysis (loads of information, variety of techniques)
+greater ecological validity(people in real world situations)
-Hard to generalize to the world because everyone is different