Research Methods Flashcards
What is a lavatory experiment?
An environmental controlled laboratory experiment which excluded independent variable
What are the strengths of a laboratory experiment?
High internal validity and high internal reliability
What are the weaknesses of a laboratory experiment?
Low ecological validity, and a chance of demand characteristics, and investigator effects
What is a field experiment?
A natural environment where independant variable is excluded
What are the strengths of field experiment?
High ecological validity and lower demand characteristics
What are the weaknesses of a field experiment?
Low internal validity and low internal reliablity
What is a natural experiment?
Where the independant variable is naturally occuring
What are the strengths of a natural experiment?
Useful and has high ecological validity
What are the weaknesses of a natural experiment?
Low internal validity and no random allocation of PPs
What is a Quasi experiment?
Where the independant variable exists
What is repeated measures?
Where each pp does both conditions
What are the 2 strengths for a repeated measures experimental design?
No pps variables and less pps needed
What are the 2 weaknesses for a repeated measures experimental design?
Risk of order effects and increased chance of demand characteristics
What is an independant group experimental design?
Where different pps are randomly allocated to 1 or other condition
What are the 2 strengths for a independant group experimental design?
No order effects and reduced demand characteristics
