Table 5 Difference in willingness-to-pay (mean and CoV) in control and treatment groups and within group effect sizes (Cohen’s d)
Occupational group | Measurement | Mean | Sig. of mean difference (p-value) | ES (Cohen’s d) | Coefficient of variation |
|---|---|---|---|---|---|
Rickshaw-puller | Control | 23.0 | 0.067 | −0.293 | 69.2 |
Treatment | 27.2 | 45.2 | |||
Shop-keeper | Control | 12.5 | 0.000 | −0.606 | 112.9 |
Treatment | 20.3 | 57.1 | |||
Restaurant workers | Control | 13.1 | 0.001 | −0.537 | 96.3 |
Treatment | 19.8 | 62.8 | |||
All workers | Control | 16.2 | 0.000 | −0.433 | 92.8 |
Treatment | 22.3 | 56.1 |