Exam 2

Question 1

The process of selecting a small number of elements from a larger defined target group of elements such that the information gathered from the small group will allow judgments to be made about the larger groups

Answer 1

Sampling

Question 2

Used when it is impossible or unreasonable to conduct a census

Answer 2

Sampling

Question 3

An identifiable group of elements of interest to the researcher and pertinent to the information problem

Answer 3

Population

Question 4

The complete set of elements identified for investigation

Answer 4

Defined target population

Question 5

The target population elements available for selection during the sampling process

Answer 5

Sampling units

Question 6

The list of all eligible sampling units

Answer 6

Sampling frame

Question 7

If the sample size is sufficiently large then the mean of a random sample from a population has a sampling distribution that is approximately normal, regardless of the shape of the distribution of the population. As the sample size increases, the better the approximation will be

Answer 7

Central limit theorem (CLT)

Question 8

Any type of bias that is attributable to mistakes in either drawing a sample or determining the sample size

Answer 8

Sampling error

Question 9

Bias that occurs in a research study regardless of whether a sample or census is used, such as bias caused by measurement error, response errors, or coding errors

Answer 9

Non-sampling error

Question 10

Each sampling unit in the defined target population has a known probability of being selected for the sample

Answer 10

Probability sampling

Question 11

Sampling designs in which the probability of selection of each sampling unit is not known. The selection of sampling units is based on the judgment of the researcher and may or may not be representative of the target population

Answer 11

Nonprobability sampling