Is the finite or infinite set of elements with common characteristics from which the research findings are obtained.

In a research is very difficult to gather information from all the ____________.

In order to assure information quality the sample must be chosen carefully. That is, the sample must be ____________.

Is based on the random selection of individuals from the population or the fact every individual has the same opportunity to be chosen.

Individuals are chosen by the researcher considering related causes and depending on the decision process of a person or group.

All of these are subtypes of probability sampling, except for:

All of these are subtypes of nonprobability sampling, except for:

One-on-one conversation with parent of at-risk youth who can help you understand the issue. Is an example of:

You notice that before the pandemic one of your classmates showed no interest on studying and was fully demotivated, now that virtual classes have been going on for a while that same student has make you realize that he is more active and participative in the activities.

This is an example of data collection by: