Research Online Quiz

What is the main purpose of sampling in research?

• a) To increase the cost of the study

• b) To examine the entire population

• c) To study a smaller, representative portion of the population

• d) To avoid analyzing data

Which of the following is a characteristic of random sampling?

• a) Every member of the population has an equal chance of being selected

• b) The sample is selected based on convenience

• c) Specific subgroups are intentionally excluded

• d) Participants are selected by the researcher’s judgment

In stratified sampling, how is the population divided?

• a) Randomly

• b) Based on specific characteristics like age, gender, or income

• c) According to geographical location

• d) In order of appearance

Which sampling technique involves selecting participants who are easiest to reach?

• a) Random sampling

• b) Convenience sampling

• c) Systematic sampling

• d) Snowball sampling

Which of the following is an example of systematic sampling?

• a) Every 5th person on a list is selected

• b) Volunteers from a specific group are selected

• c) All members of a particular category are sampled

• d) Participants are selected through referrals

6. What formula is this?

What formula is this?

What formula is this?

What does the validity of a research instrument refer to?

• a) Consistency of the results over time

• b) The extent to which the instrument measures what it is supposed to measure

• c) The ability of the instrument to produce different results in repeated trials

• d) How easy the instrument is to use

Which of the following is an example of reliability in a research instrument?

• a) The instrument produces similar results under consistent conditions

• b) The instrument measures all aspects of the concept being studied

• c) The instrument requires fewer resources to administer

• d) The instrument measures something completely unrelated