Flashcards in Confounding and extraneous variables Deck (10):
What are nuisance variables
Another word for confounding and extraneous variables because they confuse everything
What is the difference between an extraneous and a confounding variable?
Extraneous is the general term and confounding variables are specific type of extraneous variables
Can you remember the account of clever Hans and Arabian stallion? He showed an astonishing ability to perform arithmetic calculations. Someone would perform a simple arithmetic question and would start counting allowed when they reach the answer to the question the horse would start stamping its hoofs.
What does this show?
The horse was actually responding to cues so fulfilling expectations is the outcome of demand characteristics
What are situational variables
Features a research situation that may influence the participants behaviour and therefore act as Evs
What are participant variables?
Any participant variable might act as an EV such as Age intelligence motivation experience gender
In which study design is participant variables more controlled
In a repeated measures design
What are participant effects
Participant effects might occur because participants actively seek cues about how to behave
What are investigator effects
The cues that encourage certain behaviours in the participant
What sort of question may lead a participant to give the answer the investigator wants
A leading question