“…Other studies show no effect (Chen et al, 2017;Nasir et al, 2020;Fettermann et al, 2021) Gender Binary (Male or female) Not typically a significant predictor (Chen and Sintov, 2016;Chen et al, 2017;Nasir et al, 2020;Fettermann et al, 2021). Number of females predicts shower water usage (Makki et al, 2013) Highest level of education Three categories (secondary or below, A-levels, university)-dummy variables Not a significant predictor (Chen and Sintov, 2016;Bugden and Stedman, 2019;Wunderlich et al, 2019;Nasir et al, 2020). High educated respondents more likely to accept digital water meter (Koop et al, 2021) Household characteristics children (under 18) living in the household Binary (Yes or no) Household size not significant (Chen and Sintov, 2016;Wunderlich et al, 2019;Fettermann et al, 2021).…”