counterballancing, randomisation and order effects Flashcards
1
Q
what are order effects
A
performance on one condition is influenced by previous condition
practice - may learn task in 1st condition so perform better in 2nd
fatigue - become tired so performance declines
2
Q
what is counterballancing
A
ppts split in half
one does A then B
other does B then A
mean scores taken
3
Q
what is randomisation
A
selecting at random which condition a ppt does 1st
card out of hat
