what are the criteria of between subject research designs?
Participants assigned to one condition only, Groups are independent
what are the controls for between subject designs?
random assignment, holding conditions constant
what are some issues with between subject designs?
participant variables, sampling bias
what are the criteria for within-subject research designs?
participants experience all conditions, serve as their own controls, efficient with fewer participants
what are the controls for within-subject designs?
counterbalancing, randomization, latin square
what are some issues with within-subject designs?
practice and order effects
when do we use multi-level design?
when the independent variable has three or more conditions
is multi-level design within or between subject?
can be either or - but requires counterbalancing for within-subject designs
when are factorial designs used?
when manipulating two or more independent variables
what do factorial designs allow for?
allows interaction examination - more realistic for behavioral studies
when are multivariate designs used?
measure more than one dependent variable
why would one use a multivariate research design?
provides a broader understanding
what do mixed research designs do?
combine within and between subject factors
why are mixed research designs useful?
flexible and efficient
what are covariate designs?
