H494 Practice Question Set 4

5. Drawing a judgmental sample: a. allows researchers to use their prior knowledge about the population b. enlists the aid of uninformed respondents c. results in a sample that has no researcher bias d. ensures a representative sample e. requires the development of a quota matrix

a. allows researchers to use their prior knowledge about the population

3. Stratifying a population prior to drawing a sample: a. generally occurs when the variables used to stratify are known to be associated with the dependent variable b. eliminates the need for simple random sampling c. is most useful for studying a homogeneous population d. eliminates the need for probability sampling e. is an alternative systematic sampling

a. generally occurs when the variables used to stratify are known to be associated with the dependent variable

4. The chief aim of probability sampling is to be able to select: a. simple random samples b. a sample whose statistics will accurately portray an unknown population parameter c. a sample whose parameters will accurately portray an unknown population statistic d. a sample whose statistics will accurately portray a known population parameter e. a sample whose unknown statistics will accurately portray a known parameter

b. a sample whose statistics will accurately portray an unknown population parameter

1. Nonprobability sampling: a. always produces samples that possess distorted characteristics relative to the population b. denies the researcher the use of statistical theory to estimate the probability of correct inferences c. should never be used under any circumstances d. includes stratified sampling e. requires the use of sampling frames

b. denies the researcher the use of statistical theory to estimate the probability of correct inferences

2. You are doing research on hospital personnel—orderlies, technicians, nurses, and doctors. You want to be sure you draw a sample that has cases in each of the personnel categories. You want to use probability sampling. An appropriate strategy would be: a. simple random sampling b. quota sampling c. cluster sampling d. stratified sampling e. accidental sampling

d. stratified sampling