Table 2.

Main experimental outcomes, including the effect of the treatment and the experimental phase on the handwashing quality (measured by soaping time in seconds) and on the handwashing frequency of the children in the day care centre.

	Handwashing quality (soaping time)	Handwashing frequency
Intervention phase
Treatment effect (${\beta }_2$)	+ 5.297*** (0.884)	+ 0.565 (0.900)
Phase effect (${\beta }_1$)	+ 0.063 (0.816)	− 0.878 (0.851)
Post-phase
Treatment effect (${\beta }_4$)	+ 1.221*** (0.349)	− 0.278 (0.694)
Phase effect (${\beta }_3$)	− 0.054 (0.302)	− 0.644 (0.558)
Overall intercept	8.447	2.999
Observations	13,466	141
R2	0.060	0.178

The table displays the effects on soaping time (in seconds). Standard errors are reported in parentheses, adjusted for clustering at the day care centre level. *, **, and *** indicate significance at the 5%, 1% and 0.1% level, respectively.