EBP Flashcards
T/F: Qualitative research is considered descriptive research.
true
What data is obtained with qualitative research?
interview or observational behaviors
T/F: A case study is considered descriptive research.
true
What is normative research?
form of descriptive research that investigates the standards of behavior, standard values for given characteristics of a sample (ex. gait)
Which of the following attempts to define a cause and effect relationship through group comparisons?
a) historical research
b) descriptive research
c) correlational research
d) experimental research
e) causal-comparative research
f) epidemiology
D) experimental research
AND
E) causal-comparative research
What’s the difference between the independent variable and the dependent variable?
IV = experiment or treatment (cause) DV = the effect; change or difference in behavior
What’s a repeated measures design?
aka within-subject design:
- subjects serve as their own controls; randomly assigned to treatment or no treatment group
T/F: A cohort design study lacks a control group.
maybe true maybe false…. sometimes has a control, sometimes not
What is a quasi-experimental design?
aka cohort study
What is causal-comparative research?
similar to experimental, cause you’re trying to find cause/effect BUT
- it’s ex post facto: cause aka IV has already occured, can’t be manipulated
- now just looking at the effect on the DV
ex. brain injury patient (already occurred)
What is a directional hypothesis?
fancy words for research hypothesis; opposite of null hypothesis
What are the 4 data types? (think wine)
Nominal (tall or short, male or female)
Ordinal (ranks; intervals between aren’t =)
Interval
Ratio
T/F: An interval scale DOES have a true zero point.
false, no true zero
What’s an example of an ordinal scale?
manual muscle test grades (zero, trace, fair, good, etc)
What’s an example of an interval scale?
temperature (discrete distance between ranks that’s uniform throughout.. aka 1 degree)
What’s the difference between stratified sampling and systematic sampling?
stratified = individuals selected from a population from identified subgroups based on some predetermined characteristic (ex. by height, weight, or gender)
systematic = picking every 10th person
If more than two groups are compared, what statistical test must be run?
ANOVA
If only one group is being assessed, what statistical test must be run?
Chi square
If only one group is being assessed, what statistical test must be run?
Chi square
Can a t-test be run on ordinal data?
no, just interval
What is effect size?
the size (quantity/magnitude) of differences between sample means - allows test to find difference when one really does exist
