quiz research types + midterm study this Flashcards
what is the order of validity for the differeny types of studies (from psychology)
least valid: non-experimental designs (observational)
- pre-experimental designs (observational)
- quasi-experimental designs (relational)
- experimental designs (rational and casual)
what is a non-experimental design
no control group, no manipulation of IV, no randomization, purely observational
what is pre-experimental design
manipulation of independent variable, only one group look at pre and post results
what is quasi experimental design
manipulation of independent variable, control group, two groups but no randomization
what is experimental design
manipulation of iv control group and random assignment
helps find cause and effect, has 2 groups that are random
what is the order of the ebm pyramid from bottom (least valid) to top (most important) phase 1
bottom: background info/expert opionion
case series/reports
case controlled studies
cohort studies
RTC
[don’t worry about crit appra] critically appraised individual articles
critically appraised topcs (evidence synthase)
systematic reviews meta analysis (not on slide)
phase 2 if there is manipulation of independent variable its what kind of study
experimental study
if there is no manipulation of independent variable what kind of study
observational study
regarding experimental study if there is random allocation what kind of study is it
randomized controlled trial
regarding experiment study if there is no random allocation what is it
non-randomized controlled trial
observational study with comparison group what kind of study is it
analytical study
obersvational study with no comparison group
descriptive study
what are the 3 types of analytic studies
cohort, case control, cross sectional study
study that has exposure lead to outcome
cohort
study that has outcome lead to exposure (how do study)
case control study
study where exposure and outcome at the same time
cross sectional study
study where u look PAST back in time to see what lead to cause, is cheaper and easier to do, good for rare diseases (but may have recall bias)
case control (compare women with breast cancer and those without)
what study is retrospective
case control
what study is prospective (going forward in time)
cohort and controlled trial
in cross sectional study what two groups would u compare
people who don’t have the disease and people who do have the disease and look if they are doing those risk factors
in cohort study what two groups do u compare
u look at people who don’t have the diseae and the difference in the groups is if one is diogn the risk factor and the other isnt
all experimental studies are retro or prospective
prospective
what study is expensive
controlled trial
what is a better test then controlled trial
cer: comparative effecet
