TERM 1
statistical significance
DEFINITION 1
Statistical significance is a statistical assessment of whether
observations reflect a pattern rather than just chance. How
rare is the event?How likely is an event to have occurred at
random?...VS...How likely is an event to have occurred not at
random?
TERM 2
cluster random sampling
DEFINITION 2
-break population into "clusters"-randomly select clusters to
survey- survey selected clusters- good alternative when you
cant get a simple random sample- downside need large
sample to get some margin of error
TERM 3
stratified random sampling
DEFINITION 3
- divide population into groups (strata)- get simple random
sample from each strata- survey chosen inidividuals
TERM 4
multifactor design
DEFINITION 4
factors = explanatory variables- divide up the subjects so
there are subjects getting all possible combinations of the
factors
TERM 5
matched pairs design
DEFINITION 5
- each treatment is given to each subject
