Kumar-2011-Research-Methodology_-A-Step-by-Step-Guide-for-Beginners

Chapter 12
Selecting a Sample
In this chapter you will learn about:
••
The differences between sampling in qualitative and quantitative
research
••
Definitions of sampling terminology
••
The theoretical basis for sampling
••
Factors affecting the inferences drawn from a sample
••
Different types of sampling including:
– Random/probability sampling designs
– Non-random/non-probability sampling designs
– The ‘mixed’ sampling design
••
The calculation of sample size
••
The concept of saturation point
Keywords: accidental sampling, cluster sampling, data saturation
point, disproportionate sampling, equal and independent, estimate,
information-rich, judgemental sampling, multi-stage cluster sampling,
non-random sample, population mean, population parameters, quota
sampling, random numbers, random sample, sample statistics, sampling,
sampling design, sampling element, sampling error, sampling
frame, sampling population, sampling unit, sample size, sampling strategy,
saturation point, snowball sampling, study population, stratified
sampling, systematic sampling.