Exam 9: Sampling Methods and Sample Size

Probability sampling techniques include simple random sample, stratified sample, quota sample, and judgment sample.

For descriptive research the best sampling methods are the _____ sampling methods, while for exploratory research _____ samples are chosen.

_____ sampling is preferred because it allows for a calculation of the sampling error.

The target group of interest is called the

The target population is the list of the members of the sample.

A characteristic of nonprobability samples is

A quota sample allows each element of the population an equal and known chance of being selected.

Probability sampling techniques tend to be the methods of choice for descriptive research while nonprobability sampling tends to be used for exploratory research.

Sample bias is introduced into the sample when the sample varies in some unsystematic way from the larger population.

Nonprobability samples are always less representative than probability samples.

Nonstatistical methods of determining sample size include using a previous sample size, using a typical sample size, and using a magic number.