A researcher has decided to do a study of people who hunt in a nearby national forest. He asks a friend, whom he knows to be a hunter if he would consent to an interview. He interviews his friend and then asks his friend if he could name other people who hunted in the forest. His friend provides him with five names. The researcher contacts those five people interview them and asks each of those people for names of other hunters. This sampling technique is known as .

The answer to the question is Snowball Sampling

Explanation:

Snowball sampling is a primary data collection technique in which participants of a research process help to recruit other participants for a study or test. This kind of sampling is only used when it is hard to get potential participants to take part in a study or test. Why it is called snowball is because once a ball has been set rolling on a snowy day, it gathers snow as it rolls and becomes bigger.  

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world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.