SAMPLING TECHNIQUES Flashcards
samples are obtained using some objective chance mechanism
probability sampling
What are the types of probability sampling?
-simple random sampling
-systematic random sampling
-stratified random sampling
-cluster sampling
-multi-stage sampling
no way of estimating the probability that each element is included
non-probability sampling
What are the types of non-probability sampling?
-accidental/availability sampling
-purposive sampling
-quota sampling
-snowball sampling
combines different types of sampling method into single design.
mixed-method sampling
involving randomization
probability sampling
use of sampling frame
probability sampling
basic probability design
simple random sampling
What are the techniques in drawing random samples?
-Lottery Method/fishbowl technique
-Table of random numbers
-Randomly generated numbers using a computer program
first element for the sample, then subsequent elements are selected using a fixed or systematic interval
systematic random sampling
the target population is first separated into mutually exclusive
stratified random sampling
elements of the population are randomly selected in naturally occurring groupings
cluster sampling
cluster sampling which moves through a series of stages until arriving the population elements that constitute the desired sampling
multi-stage sampling
the probabilities of selection are known
probability sampling
the only approach that makes possible representative sampling plans
probability sampling
