Question

1. Identify the relevant population for the following research foci, and suggest the appropriate sampling design to investigate the issues, explaining why they are appropriate. Wherever necessary, identify the sampling frame as well. a) A company wants to investigate the initial reactions of heavy soft-drink users to a new “all natural” softdrink. b) A hospital administrator wants to find out if the single parents working in the hospital have a higher rate of absenteeism than parents who are not single. c) A researcher would like to assess the extent of pilferage in the materials storage warehouses of manufacturing firms. d) The director of human resources wants to investigate the relationship between drug abuse and dysfunctional behavior of blue-collar workers in a particular plant. e) A marketer wants to generate some ideas on how women differ from men in acquiring product knowledge about cars.

Answer 1

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1. Identify the relevant population for the following research foci and suggest the appropriate sampling design to investigate the issues, explaining why they are appropriate. Wherever necessary, identify the population frame as well.

1. A company wants to investigate the initial reactions of heavy soft-drink users to a new “All natural” soft drink

Answer:

Convenience sampling can be used to investigate the initial reactions of heavy soft-drink users to a new “all natural” soft-drink. This is because the initial reaction of heavy soft drinks users cannot be generalized that will reflect the reaction of a population (non-probability sampling). In addition to that, researchers may want to investigate with a very low cost and in a convenient way.

2. A hospital administrator wants to find out if the single parents working in the hospital have a higher rate of absenteeism than parents who are not single.

Answer:

Judgment sampling: one type of purposive sampling to assess whether hospital administrator wants to find out if the single parents working in the hospital have a higher rate of absenteeism than parents who are not single. The use of judgment sampling is because the subject chosen (single parent) is the most advantageous subject to provide the required information. The absenteeism rate could not be told by other people other than single parent. The result from this sampling may be generalized due to the fact that researchers use a sample of expert who is available.

3. A researcher would like to assess the extent of pilferage in the materials storage warehouses of manufacturing firms in the East Coast.

Answer:

Double sampling will be used to assess the extent of pilferage in the materials storage warehouse of a manufacturing firm. The company may want to investigate further about the stimuli that drive employees to execute pilferage in the warehouse. This is because the stimuli may due to low salary, poor working environment.

4. The director of human resources wants to investigate the relationship between drug abuse and dysfunctional behavior of blue-collar workers in a particular plant.

Answer:

Judgment sampling: one type of purposive sampling to assess the relationship between drug abuse and dysfunctional behavior of blue-collar workers in a particular plant. The use of judgment sampling is because the subject chosen (blue collar) is the most advantageous subject to provide the required information. The relationship between drug abuse and dysfunctional behavior could not be told by other people other than blue-collar workers. The result from this sampling may be generalized due to the fact that researchers use a sample of expert who is available.

5. A marketer wants to generate some ideas on how women differ from men in acquiring product knowledge about cars

Answer:

I would use single and multiple cluster sampling in order to generate some ideas on how women differ from men in acquiring product knowledge about cars. This is because the researchers divided the population into convenient cluster (men and women). The researchers also choose the sample randomly and investigate the required information that is searched by the cluster in acquiring the knowledge of a car.