Which method is least effective in understanding community health needs?

Relying solely on anecdotal evidence is considered the least effective method for understanding community health needs because it lacks the scientific rigor and reliability of other data collection methods. Anecdotal evidence is based on personal accounts and subjective experiences, which can be highly variable and not representative of the broader community. Such evidence may highlight individual stories but does not provide a comprehensive or accurate picture of public health trends, needs, or issues affecting the community as a whole.

In contrast, data collection through surveys, health records review, and demographic information analysis utilize systematic approaches to gather quantitative and qualitative data. These methods allow for a more thorough assessment of health needs by providing measurable insights, trends, and patterns that can inform health policies and interventions. They contribute to a collective understanding of community health, making them far more effective than relying solely on anecdotal evidence.