Interviewing the owner to identify priority units (like turnover and code violations) is an example of which type of sampling?

Target sampling is a method where the focus is on specific groups or situations that are deemed to have a higher likelihood of containing the variable of interest—in this case, lead paint risks. By interviewing the owner to identify priority units, such as those with higher turnover or existing code violations, you are strategically selecting units that are most relevant to your assessment of lead paint risks. This approach allows for a more efficient allocation of resources and a more comprehensive understanding of potential lead hazards in areas that are more likely to exhibit those risks.

In contrast, random sampling would involve selecting units completely at random, which may not effectively identify high-risk areas. Systematic sampling typically involves a rule-based approach to select units, such as every nth unit, rather than focusing on the characteristics of those units. Cumulative sampling refers to gathering data in stages over time, which does not align with the targeted nature of this scenario. By focusing on specific characteristics of units, target sampling ensures that the assessment is directed toward the highest priority areas, maximizing the effectiveness of the evaluation process.