A questionnaire has little to do with sampling technique. Sampling technique is to do with who gets the questionnaire and that can be any sampling technique: the questionnaire can be sent to everyone (census), to a random sample, stratified random samples, to random samples in clusters, by quota or convenience. Or a pile of questionnaires can be left for respondents to pick up - self-selection.
Disadvantages of systematic sampling: © The process of selection can interact with a hidden periodic trait within the population. If the sampling technique coincides with the periodicity of the trait, the sampling technique will no longer be random and representativeness of the sample is compromised.
So-called accidental sampling. Please see the link.
Primary sampling is a research method used by various companies for many different reasons. The primary sampling unit arises in sampling surveys where population elements are grouped, and those groups becomes units in the sample selection.
There are several merits of using sampling as a methodology of research. Some of them include saving on time and labor, it significantly reduces the cost of the operation and so much more.
because it is the simplest sampling technique which requires less time and cost.
Random Sampling is the most common sampling technique
stratified sampling technique
Quota sampling.
Sampling is the key technique used to digitize analog information. For example, music CDs are produced by sampling live sound at frequent intervals and then digitizing each sample. The term sampling is also used to describe a similar process in digital photography.
try researching about total enumeration technique... it's the other name for universal sampling technique ^_^ Good luck..
A questionnaire has little to do with sampling technique. Sampling technique is to do with who gets the questionnaire and that can be any sampling technique: the questionnaire can be sent to everyone (census), to a random sample, stratified random samples, to random samples in clusters, by quota or convenience. Or a pile of questionnaires can be left for respondents to pick up - self-selection.
Clustered sampling.Clustered sampling.Clustered sampling.Clustered sampling.
This technique is used when natural but relatively homogenous groupings are evident in a statistical population. This technique is commonly used in marketing research. The technique splits the population into groups and only a simple random group is selected.
Stratified sampling
Disadvantages of systematic sampling: © The process of selection can interact with a hidden periodic trait within the population. If the sampling technique coincides with the periodicity of the trait, the sampling technique will no longer be random and representativeness of the sample is compromised.
semi stratified sampling