Table 4 Change in willingness-to-pay (mean and CoV) between pre- and post-treatment periods 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 | Pre | 23.8 | 0.109 | −0.281 | 50.7 |
Post | 27.2 | 45.2 | |||
Shop-keeper | Pre | 14.2 | 0.002 | −0.501 | 92.4 |
Post | 20.3 | 57.1 | |||
Restaurant workers | Pre | 17.4 | 0.269 | −0.186 | 76.0 |
Post | 19.8 | 62.8 | |||
All workers | Pre | 18.2 | 0.001 | −0.317 | 73.7 |
Post | 22.3 | 56.1 |