The randomized response technique permits the investigator to
a. randomly select subjects
b. code the data in such a way as to recover the true response of each participant
c. estimate the rate of a behavior in the population without knowing an individual's true response
d. identify participants who are lying
Question 2The major advantage of cluster sampling over simple random sampling is that it
a. saves time and money
b. yields more reliable research findings
c. yields a higher degree of randomness in heterogenous populations
d. yields a higher degree of randomness in homogeneous populations
Question 3A researcher is interested in how individuals in a certain city feel about the chance of their becoming victims of a crime. To investigate this question, she randomly selects 12 city blocks and then randomly selects a certain number of people from each block. This method of sampling is known as
a. stratified random sampling
b. cluster sampling
c. purposive sampling
d. nonprobability sampling
Question 4Oversampling happens when
a. too many of one subpopulation is selected by chance
b. a subpopulation is intentionally over represented in a sample
c. sampling is conducted in two waves on the same population
d. extra individuals are selected in case of incomplete data