Research Issues And Controls Flashcards
(7 cards)
What is a pilot study
A small scale trial run of the actual investigation May only involve a small number of participants
Allows the researcher to identify any potential issues and modify the design saving time and money in the long run
What are demand characteristics
A feature of a procedure that influences a participant to try and guess what a study is about and look for cues as to how to behave
Controls for demand characteristics - single blind
Participant does not know true aims of experiment or doesn’t know they are involved in one.
OR
Person conducting experiment (who has not designed it) does not know the aims and therefore cannot produce cues about what they expect
What is the investigator effect
A term used to describe subtle cues or signals from an experimenter that affect the performance of participants in studies
Cues may be unconscious eg gestures or conscious eg tone of voice
Controls for investigator effects - double blind
Both participant and person conducting experiment are blind to aims
Controls for investigator effects - randomisation
Using chance wherever possible to reduce the researchers influence
What is standardisation.
Keeping everything the same for each participant eg. Standardised procedure and instructions