Table 2

Rationale and evidence for dropping water insecurity module items

Analysis informing decisionItem dropped (item number)*Rationale
Descriptive statisticsLoan water (1.24)Not salient
Too sick or weak (1.30)Not salient
Treat water (1.20)Not salient
Take medications (1.29)Too rare
Crops (1.5, 2.6)Not universal
Livestock (1.6, 2.7)Not universal
Caring for children (1.10)Not universal
Miss school (1.12, 2.11)Not universal
Wash face and hands of children (1.16, 2.15)Not universal
Worry about safety of person (1.2, 2.4)Not universal
Lacked money (1.8, 2.9)Not universal
Nowhere to buy (1.9, 2.10)Not universal
Earning money (1.7, 2.8)Not universal
Item correlations (EFA)Quarrel - neighbours (1.25, 2.22)Poor item correlation coefficients
Quarrel - household (1.26, 2.23)Poor item correlation coefficients
Taste bad (1.21, 2.19)Poor item correlation coefficients
Drank unsafe (1.22, 2.20)Poor item correlation coefficients
Borrow (1.23, 2.21)Poor item correlation coefficients
Moving (1.3, 2.28)Poor item correlation coefficients
Item correlations (Rasch)Attend social events (1.19, 2.18)Redundant (highly correlated with “day interrupted”) and poor phrasing
Chores (1.11)Redundant (highly correlated with “wash clothes”) and poor phrasing
Preferred (2.2)Redundant (highly correlated with “worry about enough”) and poor phrasing
  • *Complete item numbering in online supplementary table 1.