experimental design Flashcards
(13 cards)
3 types of experimental design
repeated measures design
independant groups design
matched pairs design
repeated measures design is when
the same people are used in all conditions
2 strengths of repeated measures design
participant variables are eliminated
fewer participants needed
2 disadvantages of repeated measures design
order effects
demand characteristics
order effects can be solved by
counterbalancing
counterbalancing is
ABBA
independant groups design is when
different people take part in each condition
what can be used for independant groups design
random allocation
2 strengths of independant groups design
no order effects
participants less likely to figure out the aim
2 weaknesses of independent groups design
partipacant variables
more people needed
matched pairs design is when
different people take part in each condition but are matched with someone else for the other condition
3 strengths of matched pairs design
less participant variables
no order effects
no demand characteristics
2 weaknesses of matched pairs design
participant variables aren’t completely gone
matching is difficult and time consuming
