Methods of Non-probability sampling

Question 1

It sets out to make a sample agree with the profile of the population based on some pre-selected characteristic.

Answer 1

Purposive Sampling

Question 2

it selects a specified number (quota) of sampling units possessing certain characteristics

Answer 2

Quota Sampling

Question 3

It selects sampling units that come to hand or are convenient to get information from

Answer 3

Convenience Sampling

Question 4

It selects sample in accordance with an expert’s judgment

Answer 4

Judgement Sampling

Question 5

A method where new units are recruited by other units to form part of the sample

Answer 5

Snowball sampling

Question 6

Methods of Probability Sampling

a method of selecting n units out of the N units in the population in such a way that every distinct sample size n has an equal chance of being drawn

Answer 6

Simple Random Sampling (SRS)

Question 7

selected unit will not be selected again

Answer 7

SRS without Replacement

Question 8

selected unit has a chance of being selected again

Answer 8

SRS with Replacement

Question 9

is a method of selecting sample by taking every kth unit from an ordered population, the first unit being selected at random. here, k is the sampling interval, 1/k is the sampling fraction

Answer 9

Systematic Random Sampling

Question 10

The population of N units is first divided into strata. Each stratum must consist of more or less homogeneous units. then a SRS is drawn from each stratum, the selection being made independently in different strata

Answer 10

Stratified Random Sampling

Question 11

method where a sample of distinct groups or clusters of elements is selected and then the census of every element in the selected clusters is taken.

Answer 11

Cluster Random Sampling

Question 12

the population is divided into a hierarchy of sampling units corresponding to the different sampling stages. It can be two-stage or three-stage or four-stage.

Answer 12

Multistage Random Sampling