exoerimental designs Flashcards
what do group designs do
compare large groups of pp to asses affect of IV/DV
group design between subjects
pp randomly assigned to experimental or conrolled group
droup design within subjects
reapted measurs of the same pp across conditions
single case design
3 points
within subject design
use 1 or few pp ro determine iv effect on dv
Allows more indepth observations
limitaions for single case designs
4
small group - no external validity
needs replication
individual phenomenon - worls for one not another
behaviour not static - changes day to day
6 compondents of a graph
axis lables for axis numbers on axis data points phase line phase labels
base line performance
used to predict how client will behave in the future
abab/reversal design
design that shows effect of the iv by systematically removing it and returning to baseline
when ABAB should be used
when behaviour is not dangerous to the persom
when behaviour is likely to reverse
multiple base design
staggered in implimentaion on areas people settings or behaviours
alteration treatment design
allows simultaneous comparison of treatments to baseline by using rapid random alterations of iv
when to use alteraion txs
2 or more interventions you want to compare
Comparison of 2 or more IVs
ABAC