Non-Probability Sampling Procedures

This video presentation covers different non-probability sampling procedures. It discusses when to you and how to select a range of non-probability sampling procedures including: quota sampling, purposive/ judgmental sampling (extreme case sample, intensity sample, heterogenous sample, homogenous sample, typical case sample, critical case sample, politically important sample, opportunistic sample and theoretical sample), volunteer sampling (self selection sample, snowball sample), and haphazard sampling (convenience sample). Guided further reading is offered.
Other video presentations on this channel include an overview of sampling procedures, a similar presentation on probability sampling procedures and a presentation on samplesize for interviews