Which is considered a disadvantage of primary data collection?

The selection of the option highlighting that primary data collection can be time-consuming is accurate because gathering primary data involves a rigorous process that can extend over a significant length of time. Researchers must design their studies, develop instruments (like surveys or interviews), recruit participants, and then collect and analyze the data. This extensive process often results in longer timelines before results can be seen and utilized.

In contrast, the other options do not accurately describe the nature of primary data collection. Primary data is inherently specific to the research question, as it is collected directly to address that specific inquiry. It is also generated in real-time, meaning it provides current and relevant data rather than outdated findings. While primary data can be rich with detail depending on the methodology used, secondary data is often criticized for being less detailed as it is derived from existing studies or data sets, which may not capture all nuances related to the current investigation. Thus, the time-consuming nature of primary data collection stands out as a legitimate disadvantage.