11
Jun/090
Jun/090
Double Sampling
Double Sampling is a probability sampling design that involves the process of collecting information from a set of subjects twice, such as using a sample to collect preliminary information and later using a sub-sample of the primary sample for more information.
6
May/090
May/090
Complex Probability Sampling
Complex Probability Sampling is some probability sampling designs, which offer an alternative to the cumbersome, simple random sampling design.
6
May/090
May/090
Cluster Sampling
Cluster Sampling is a probability sampling design in which the sample compromises groups or chunks of elements with intra-group heterogeneity and inter-group homogeneity.