A SAMPLING TECHNIQUE is a procedure used to determine the indiciduals or members of a sample. It may be a probability or non-probability sampling technique.
Probability Sampling - each member ir element of the population has an equal chance of being selected as members of the sample
In research, the entire population is seldom used because of the cost and time involved. Most researches use only a small representative of a population called the sample. The sample is used to know and/or describe the characteristics of a population.
COLLECTING DATA is the first step in conducting a research or study. It may be gathered from primary or secondary sources.
Primary Sources - statistical data from government institutions, business agencies, civil society organizations, first-hand surveys and interviews
Secondary Sources - books, encyclopedia, journals, magazines, research or studies by other people