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Table 4 Change in willingness-to-pay (mean and CoV) between pre- and post-treatment periods and within group effect sizes (Cohen’s d)

From: Impact of educational intervention on willingness-to-pay for health insurance: A study of informal sector workers in urban Bangladesh

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