DECA Hospitality and Tourism Cluster Practice Exam

Which sampling design utilizes data based on expert knowledge?

1. Systematic random sampling

2. Referral sampling

3. Simple random sampling

4. Judgment sampling

The correct answer is: Judgment sampling

Judgment sampling is a non-probability sampling technique that relies on expert knowledge and subjective judgment to select participants or samples. In this design, the researcher identifies individuals or groups that they believe will provide the most relevant and insightful information regarding the research question based on their expertise. Experts bring valuable insights that can greatly enhance the quality and relevance of the data collected, especially in cases where specific knowledge is paramount. This approach is particularly useful in niche markets or specialized research areas where a random sampling method might not adequately capture the essential characteristics of the population. The effectiveness of judgment sampling lies in the researcher's ability to make informed decisions about who should be included in the sample, thus ensuring that the selected subjects can contribute meaningful information to the study. Other sampling designs, such as systematic random sampling, referral sampling, and simple random sampling, do not depend primarily on expert judgment. Systematic random sampling relies on a pre-determined interval from a randomly selected start point, referral sampling gathers data based on references provided by previously selected subjects, and simple random sampling ensures every individual has an equal chance of selection without consideration of expertise.