research methods Flashcards
what is the IV
something you can change
what is the DV
something you can measure
what is an EV
anything other than the IV that may have an effect on the DV
what is standardisation
using the same formalised procedures and instructions for all pps
what are the experiment designs
independent groups
matched pairs
repeated measures
what is one strength of independent groups
no problem with order effects as each pps only performs on other the tasks
what is a limitation of independent groups
participant variables
define independent groups
pps allocated into different groups where each group represents only one experiment group
define matched pairs
pairs of participants are matched on variables that may effect the DV
one member goes to condition 1 the other to condition 2
what is a strength of matched pairs
decreased order effects and demand characteristics
what is a weakness of matched pairs
matching is difficult and time consuming
define repeated measures
all pps take part in all conditions
what is a weakness of repeated measures
order effects
can be overcome by counterbalancing
what is a strength of repeated measures
controls pps variables