Sampling Techniques Objective Type Questions and Answers

Questions

21 Which of the following is not true about stratified random sampling?

A It involves a random selection process from identified subgroups

B Disproportional stratified random sampling is especially helpful for getting large enough subgroup samples when subgroup comparisons are to be done

C Proportions of groups in the sample must always match their population proportions

D Proportional stratified random sampling yields a representative sample

View Answer

Answer: Proportions of groups in the sample must always match their population proportions

22 Which of the following is not a form of nonrandom sampling?

A Snowball sampling

B Convenience sampling

C Quota sampling

D They are all forms of nonrandom sampling

View Answer

Answer: They are all forms of nonrandom sampling

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23 Which of the following would generally require the largest sample size?

A Simple random sampling

B Systematic sampling

C Proportional stratified sampling

D Cluster sampling

View Answer

Answer: Cluster sampling

24 A type of sampling used in qualitative research that involves selecting cases that disconfirm the researcher's expectations and generalizations is referred to as _______________.

A Negative-case sampling

B Extreme case sampling

C Critical-case sampling

D Typical-case sampling

View Answer

Answer: Negative-case sampling

25 Using Figure 6.6 (pg. 178), how many participants will you need for a research study with a population of 120,000?

A 384

B 242

C 232

D None of these

View Answer

Answer: 384

26 If we took the 500 people attending a school in New York City, divided them by gender, and then took a random sample of the males and a random sampling of the females, the variable on which we would divide the population is called the _____.

A Stratification variable

B Independent variable

C Dependent variable

D Sampling variable

View Answer

Answer: Stratification variable

27 It is recommended to use the whole population rather than a sample when the population size is of what size?

A 500 or less

B 100 or less

C 1000 or less

D you should always use a sample

View Answer

Answer: 100 or less

28 Which of the following is not an example of a nonrandom sampling technique?

A Cluster

B Purposive

C Convenience

D Quota

View Answer

Answer: Cluster

29 ___________ is a set of elements taken from a larger population according to certain rules.

A Population

B Statistic

C Element

D Sample

View Answer

Answer: Sample

30 Which of the following statements are true?

A The larger the sample size, the greater the sampling error

B The more categories or breakdowns you want to make in your data analysis, the larger the sample needed

C The fewer categories or breakdowns you want to make in your data analysis, the larger the sample needed

D As sample size decreases, so does the size of the confidence interval

View Answer

Answer: The more categories or breakdowns you want to make in your data analysis, the larger the sample needed

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