Table 3.

Tests of HWISE Scale validity using random coefficient regression models, controlling for sites

	Coefficient (95% CI)	SD (residual)	ICC
Predictive validity†
Satisfaction with water situation‡	−0.07 (-0.08 to -0.06)***	1.12	0.19
Perceived water standing in community§	0.16 (0.12 to 0.20)***	2.26	0.12
4-item Perceived Stress Scale score (0–16)	0.05 (0.01 to 0.09)**	2.27	0.22
Household Food Insecurity Access score (0–27)	0.38 (0.29 to 0.47)***	5.61	0.32
Convergent validity¶
Time (minutes) to water source	0.06 (0.02 to 0.09)**	6.82	0.41
Discriminant validity¶
If injured while fetching water	4.51 (2.21 to 6.80)***	7.28	0.37

^*P<0.05; **P<0.01; ***P<0.001.

†HWISE Scale score is the main independent variable.

‡Range is 1–5, 5=very satisfied.

§Scored using a ladder with range 1–10,1=highest standing.

¶HWISE Scale score is the dependent variable.

HWISE, Household Water InSecurity Experiences; ICC, intraclass correlation coefficient.