Strengths And Weaknesses Flashcards
Give 2 strengths of independent measures designs.
- different P’s = no order effects
* task only seen once = no demand characteristics
Give 2 weaknesses of an independent measures designs.
- more P’s needed
* individual differences distort results
Give 2 strengths of repeated measures designs.
- individual differences don’t distort results
* fewer P’s needed
Give 2 weaknesses of repeated measures designs.
- order effects (practice, fatigue, etc) = distort results
* task seen more that once = demand characteristics
Give 2 strengths of matched participants.
- task only seen once = less demand characteristics
* controls for individual differences
Give 2 weaknesses of matched participants.
- similarity between pairs is limited
* time consuming and difficult to match
Give 2 strengths of a lab experiment.
- control over extraneous variables
* can be repeated = reliable
Give 2 weaknesses of a lab experiment.
- low ecological validity
* demand characteristics
Give 2 strengths of a field experiment.
- normal situation = representative behaviour
* demand characteristics = no problem if P’s unaware of study
Give 2 weaknesses of a field experiment.
- control over extraneous variables = difficult (can’t be sure of cause and effect)
- if unaware of a study = ethical issues
Give 2 strengths of a quasi-experiment.
- allows us to study variables not ethically manipulated
* real life relevance
Give 2 weaknesses of quasi-experiments.
- only possible when naturally occurring differences arise
* control over extraneous variables = difficult
Give a strength of participant observations.
• real behaviour seen = validity
Give 2 weaknesses of a participant observation.
- observer bias
* if aware of study behaviour won’t be representative
Give 2 strengths of a non-participant observation.
- remain objective
* covert = use equipment for detailed results
Give 2 weaknesses of a non-participant observation.
- covert = ethical issues
* overt = alter behaviour
Give a strength of an overt observation.
• aware so ethical
Give a weakness of an overt observation.
• responses may not be natural
Give 2 strengths of a covert observation.
- genuine behaviour
* non-P = equipment used for accurate recording