Research Design Flashcards
what will an operational concept allow for?
shows how your concepts will be observed or measured
how should data be measured? (1)
minimizes random variation
what is the difference between experimental and quasi-experimental?
quasi experimental has lower control: either doesn’t have the randomized population or the control group
how many groups does an experimental design have?
2 or more
what are experimental designs controlled by?
matching and randomization
The solomon group 4 design allows for what?
2 pre test groups and 4 post test groups
name this design: subjects receive one treatment and are compared to a control group receiving no or different treatment
parallel
name this design: each subject receives all treatments in a randomized order with breaks between treatments and outcomes/response is compared within subjects.
cross over design
what does nonequivalent control mean?
pre test and post test with no control group
when is a separate pre test and post test used?
when you cannot use a solomon group 4 design
name this: repeated measures over time known threat to validity.
time series
positive outcome of single subject design:
decreases generalizability
what does an exploratory observational design mean?
investigate relationship between 2 variables.
describe a case study.
you are directly observing the patient
there is no manipulation or control of variables
what does a systematic review look at?
very specific research question whcih follows the inclusion and exclusion criteria
there is pre-established quality criteria in order to rate the individual studies
