Respondents for the study were defined as the 174 urban design signatory organisations.
In order to achieve a comprehensive picture within, and across, all urban design signatories, multiple contacts were selected on the following basis:
Key features of the sampling process for the online survey were as follows:
The online survey was conducted between 12 November and 4 December 2009.
The process for conducting the online survey involved the following steps:
The response rate was calculated as follows:
Response Rate = C/(C+B+[D*(B+C)/(A+B+C)]), where:
A = sum of ineligible individuals
B = sum of eligible non-responding individuals
C = sum of eligible responding individuals
D = sum of individuals with unknown eligibility.
Responses to the online survey were received from 110 out of 174 signatory organisations, equating to signatory response rate of 63 percent, and as such, we can be confident that the results presented and discussed in the main report are representative. Of the total participants invited to respond (n=256), an overall response rate of 49 percent (or n=126) was achieved.
The following tables provide a breakdown of this response by the different respondent categories, in relation to the potential sample that could have responded.
| Total sample population | Achieved sample | Response Rate | |
|---|---|---|---|
| Central Government | 28 | 15 | 54% |
| Local Government | 77 | 36 | 47% |
| Consultants, Developers & Investors | 109 | 59 | 54% |
| Sector Organisations, Professional & Educational Institutes | 42 | 16 | 38% |
| Total | 256 | 126 | 49% |
The tables below detail the sample composition for the online survey.
|
Total
n=126 % |
|
|---|---|
| Chief Executive | 4 |
| Councillor | 3 |
| Director | 28 |
| Manager | 21 |
| Team leader | 8 |
| Senior technical advisor (non-management position) | 21 |
| Technical advisor | 5 |
| Chairman/Executive Board | 6 |
| Other | 4 |
| Total | 100 |
Base: all respondents.
Note: Components may not always add to 100% exactly because of rounding
| Total | |
|---|---|
| n=126 | |
| % | |
| Champion | 74 |
| Non-champion | 26 |
| Total | 100 |
Base: all respondents.
Note: Components may not always add to 100% exactly because of rounding
|
Total
n=126 % |
|
|---|---|
| Central Government | 12 |
| Local Government | 29 |
| Consultants, Developers & Investors | 47 |
| Sector Organisations, Professional & Educational Institutes | 13 |
| Total | 100 |
Base: all respondents.
Note: Components may not always add to 100% exactly because of rounding
Given the fact that 110 out of 174 signatory organisations responded to the online survey, the results are therefore subject to margin of error.
As more than one respondent from each signatory was invited to participate in the online survey, the margin of error calculation for a simple random sample has been used.
The maximum margin of error (simple random sample), at the 95 percent confidence level for the total sample of n=126 responses is ± 8.7 percent.
The following margins of error (at the 95 percent confidence level) apply to the different sample groups discussed in the main report.
|
Total sample achieved
n=126 |
Maximum Margin of Error
(at the 95 % confidence level) |
|
|---|---|---|
| Champion | 93 | ± 10.2% |
| Non-champion | 33 | ± 17.1 % |
| Central Government | 15 | * |
| Local Government | 36 | ± 16.3 % |
| Consultants, Developers & Investors | 59 | ± 12.8 % |
| Sector Organisations, Professional & Educational Institutes | 16 | * |
| Total sample | 126 | ± 8.7% |
*Sample size too small to calculate margin of error