types of samples
DESCRIPTION
Sampling: Probability vs non-probabilityTRANSCRIPT
1/3/2013 1
Types of samples
NONPROBABILITY PROBABILITY
Haphazard: Select anyone who Simple: Select people based
is convenient on a true random procedure
Quota: Select anyone in pre- Systematic: Select every Kth
determined groups person (quasi-random)
Snowball: Select people connected Stratified: Randomly select
to one another people in predetermined
groups
Purposive: Select anyone in a Cluster: Take multistage
hard-to-find target population random samples in each of
several levels
(Neuman, 1994, p. 197)