Chapter ??: Sampling Flashcards Preview

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Flashcards in Chapter ??: Sampling Deck (14)
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1
Q

Sampling

A

The process of obtaining information from a subset of a larger group.

2
Q

Population

A

The entire group of people about whom information is needed; also called the universe or population

3
Q

Census

A

Data collection from or about every member of the population of interest. Also called canvassing the population by asking everyone a set of questions.

4
Q

Sample

A

A subset of all members of a population of interest. Hopefully that subset is statistically representative of the general population.

5
Q

Probability Sampling

A

Everyone in the population has a known, nonzero, likelihood of selection.

6
Q

Nonprobability Sampling

A

Samles in which specific elements from the population have been selected in a nonrandom manner.

7
Q

Sampling Frame

A

List of population elements from which units to be sampled can be selected or a specified procedure for generating such a list.

8
Q

Random-Digit Dialing

A

Method of generating lists of telephone numbers at random.

9
Q

Steps in Developing A Sampling Plan?

A
  1. Define the Population of Interest
  2. Choose a data-collection method
  3. Identify a sampling frame
  4. Select a sampling method
  5. Determine sample size
  6. Develop operational procedures for selecting sample elements
  7. Execute the operational sampling plan

“Does Chody Intentionally Suck Dicks During Examinations?”

10
Q

Probability Samples

A

Samples in which every element of the population has a known, nonzero likelihood of selection

11
Q

Nonprobability Samples

A

Samples in which specific elements from the population have been selected in a nonrandom manner

12
Q

Sample Size

A

The identified and selected population subset for the survey, chosen because it represents the entire group.

13
Q

Acceptable error

A

the difference between sample result and population value

14
Q

Levels of Confidence

A

The likelihood that the confidence interval - sample result plus or minus the acceptable error - will take in the true population