Author Question: The distinguishing feature of probability samples is that: a. they involve personal judgment ... (Read 178 times)

rl · **on:** Jun 29, 2018

The distinguishing feature of probability samples is that:
a. they involve personal judgment somewhere in the selection of sample elements.
b. each population element has an equal chance of being included in the sample.
c. each population element has an equal chance of being included in the sample and every combination of n population elements is a sample possibility.
d. each population element has a known chance of being included in the sample.
e. they will always be more representative of the population than nonprobability samples.

Question 2

A researcher wants to study the effects of social class on consumption behavior. He establishes three different categories of social class in terms of amount of income. He then assigns each field worker a specified number of interviews with people in each income category although the interviewers are allowed to select who they interview. This is an example of:
a. probability sampling.
b. stratified sampling.
c. systematic sampling.
d. quota sampling.
e. random sampling.