alternative research designs

Question 1

single case experimental designs involve

Answer 1

manipulation of IV and measurement of DV

Question 2

why might we use single case experiments?

Answer 2

therapy, chemistry, unusual disorders, time consuming or expensive research

Question 3

principles of single case experimental designs for IV:

Answer 3

operational definition, materials, procedure, actively manipulated rather than passively

Question 4

principles of single case experimental designs for DV:

Answer 4

must be operationally defined, measured repeatedly (N=1)

Question 5

principles of single case experimental designs for baseline:

Answer 5

measurement of pre-experimental behavior, contrast baseline performance after intervention, need multiple measurements to establish a trend

Question 6

A-B design

Answer 6

A= pretest baseline measurement. B= posttest measurement after presence of IV. ads pretest-posttest design

Question 7

A-B-A design

Answer 7

a= baseline - B- posttest - A= removal of IV. of change in DV is actually due to the IV then there should be a reversal

Question 8

2 types of quasi experimental design

Answer 8

non equivalent group design and interrupted time series

Question 9

non equivalent group design characteristics:

Answer 9

no randomization, can create a comparison group from those on a waiting list, problems with threats to internal validity