Systematic Sampling
Systematic sampling is the second type of random sampling.
It is an equal probability sampling method (EPSEM).
Remember simple random sampling was also an EPSEM.
Systematic sampling involves these three steps:
First, determine the samp

Sampling in Quantitative, Qualitative, and Mixed Research
Sampling refers to drawing a sample (the subset) from a population (the full set).
The usual goal in sampling is to produce a representative sample (i.e., a sample
that is similar to the population

Sampling in Mixed Research
Sampling in mixed research builds on your knowledge of sampling in quantitative and
qualitative research. Typically, the researcher will select the quantitative sample using
one of the quantitative sampling techniques and the qu

Stages in Participatory Observation
1. Selection of a site and definition of problems, concepts, and indicators.
The researcher tentatively identifies the problem or phenomenon of interest,
and tries to discern what will yield the greatest understanding o

Simple Random Sampling
The first type of random sampling is called simple random sampling.
It's the most basic type of random sampling.
Its an equal probability sampling method (which is abbreviated by EPSEM).
Remember that EPSEM means "everyone in the sa

Cluster Random Sampling
In this type of sampling you randomly select clusters rather than randomly select
individual type units (such as individual people) in the first stage of sampling.
A cluster has more than one unit in it. (Some examples of clusters

Random Selection and Random Assignment
In random selection you select a sample from a population using one of the random
sampling techniques discussed earlier.
Your purpose is to obtain a sample that represents the population.
If you use a EPSEM technique

Sampling in Qualitative Research
Sampling in qualitative research is usually purposive (see the above discussion of
purposive sampling). The primary goal in qualitative research is to select information rich
cases.
There are several specific purposive sam

Causal-comparative/quasi-experimental research
Experimentalresearch,oftencalledtrueexperimentation,usesthescientificmethodto
establishthecauseeffectrelationshipamongagroupofvariablesthatmakeupastudy.
Thetrueexperimentisoftenthoughtofasalaboratorystudy,but