1. Evaluate this research design.

2. What changes, if any, would you make in the observation form?

3. What problems would you expect in the data collection stage?

4. What techniques would you use to analyze the data?

Pedestrian field workers covered each block in the CBD area to obtain a physical inventory of the existing commercial base.Information, such as the company name, address, primary business activity, estimated frontage space, and other relevant information about each building site or office was obtained.Standard Industrial Classification (SIC) codes for retailers were recorded by the field workers.SIC codes for all other establishments were recorded by research assistants.All the data were identified by census block.