Concepts
A representative group, chosen from a larger population
What is sample?
All the elements or units have the same chance of being chosen for the sample
What is probability sampling?
List of persons drawn from the population
What is sampling frame?
The researcher selects every 'nth' element or unit at regular intervals
What is systematic random sampling?
A computer program selects the sample in a random manner?
What is a random number generator?
Every member of the population has the same probability of being selected
What is simple random sampling?
Numbers representing each element or unit are placed in a vessel and shuffled. The numbers are pulled out until the sample has been selected.
What is Lottery or Blind Draw?
This technique uses references to select respondents.
What is snowball sampling?