Validation of an Instrument to measure the acceptance of a technology for the self-removal of human excreta adapted to Dry Toilets



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Vera Barrios, B. S., del Carpio Delgado, F., & Aguilar Martinez, J. A. (2021). Validation of an Instrument to measure the acceptance of a technology for the self-removal of human excreta adapted to Dry Toilets. Universidad Ciencia Y Tecnología, 25(110), 97-108.


The objective of the study is to build an instrument that allows to know the acceptance of the population towards a technology for the removal of human excreta by propulsion adapted to the dry toilet instead of the conventional system. The sample consisted of 200 lower-middle class residents. The study was quantitative; a survey was applied based on the Likert scale. The respective validation was carried out applying the methodology of exploratory factor analysis through the method of estimating maximum likelihood factors with reliability estimation and measurement bias analysis. The final questionnaire is made up of 6 dimensions, a factorial structure that includes 14 items and its consistency shows an α of 0.81. The instrument was appropriate for psychometric measurement. It is concluded that the acceptance of the technology is conditioned to factors of functionality, aesthetics and hygiene of the system, and there is a predisposition of the user to promote the technology.

Keywords: Instrument, toilet, propulsion, excreta, technology.


[1]H. Moule, “Baño seco ecológico”, Reino Unido Patente Nº 1316, mayo 28, 1860.

[2]K. L. Kyung, “Designing a Waterless Toilet Prototype for Reusable Energy Using a User-Centered Approach and Interviews”, Applied Sciences, vol. 9, no.919, pp. 2-11, March 2019. [Online]. Available: https://doi:10.3390/app9050919.

[3]S. Saxena, B. Ebrazibakhshayesh, S. K. Dentel, D., K. Cha, y P. T. Imhoff, “Drying of fecal sludge in 3D laminate enclosures for urban waste management”, Science of The Total Environment vol. 672, no. 1, pp. 927-937, 2019. [Online]. Available:

[4]O.D. Oluwasola Afolabi y M. Sohail. “Microwaving human faecal sludge as a viable sanitation technology option for treatment and value recovery-A critical review”, Journal of Environmental Management journal, vol.187, no.1, pp.401-415, February 2017. [Online]. Available:

[5]P. Moya, S. López, J. Guardiola and F. Gómez. “Determinants of the acceptance of domestic use of recycled water by use type”, Sustainable Production and Consumption journal, Research article, vol.27, no.4, pp. 575-586, July 2021. [Online]. Available: doi: 10.1016/j.spc.2021.01.026.

[6]C. Sutherland, E. Reynaert, R.C. Sindall, “Socio-technical analysis of a sanitation innovation in a peri-urban household in Durban, South Africa”, Science of The Total Environment, vol.755, Part 2, 143284 , February 2021. [Online]. Available:

[7]H.J. Lease, D.H. MacDonald, and D.N. Cox, “Consumers’ acceptance of recycled water in meat products: The influence of tasting, attitudes and values on hedonic and emotional reactions”, Journal Food Quality and Preference, vol.37, pp. 33-44, October 2014. [Online]. Available: https://doi: 10.1016/j.foodqual.2014.04.002.

[8]C. Hou, Y. Wen, H. Fu and X. Liu. “Impacts of regional water shortage information disclosure on public acceptance of recycled water d evidences from China’s urban residents” Sustainable Cities and Society, vol. 61, October 2020. [Online]. Available: https:// doi:10.1016/j.scs.2020.102351.

[9]K.M. Lamichhane , y J.R. Babcock, “Survey of attitudes and perceptions of urine-diverting toilets and human waste recycling in Hawaii”, Journal Science of The Total Environment, vol.443, no.15, pp.749-756, January 2013. [Online]. Available:

[10]S. Prithvi, C. Lalander, “what do consumers think about recycling human urine as fertiliser? Perceptions and attitudes of a university community in South India.” Water Research vol.143, pp.527-538, October 2018. [Online]. Available:

[11]Y. Ding, and X. Liu, “The association between emotions and public acceptance of recycled water for urban residents”, Journal of Civil Engineering and Management, vol.27, no. 2, pp.76–86, February 2021. [Online] Available: doi:

[12]J. Hennigs, K. Ravndal, T. Blose, “Field testing of a prototype mechanical dry toilet flush”. Journal Science of the Total Environment, vol 668, no. 10, pp. 419-431, July 2019. [Online]. Available:

[13]J. Tavares, I. Cardoso, B. Alves, J. Barbosa and B. Martini, “TrailCare: An indoor and outdoor Context-aware system to assist wheelchair users”, International Journal of Human-Computer Studies, vol.116, pp.1-14, April 2018. [Online]. Available:

[14]S. Lloret, A. Ferreres, A. Hernández and I. Tomas, “El análisis factorial exploratorio de los ítems: una guía práctica, revisada y actualizada”, Anales de Psicología, vol. 30, no.3 , pp.1151-1169 , October 2014. [Online]. Available:

[15]V. Pedrero, M. Bernales, M. Chepo, J. Manzi and M. Pérez, “Development of an instrument to measure the cultural competence of health care workers”, Revista de saude publica. vol.54, no.29, pp. 1-10, March 2019. [Online]. Available:

[16] M. Salvador, L. Moreno, D. Hernández, A. Martínez and E. Ochoa, “Construcción y validación de un instrumento para medir la satisfacción de los pacientes del primer nivel de atención medica en la Ciudad de México”, Gaceta Medica de México, vol.152, pp. 43-50, 2016. [Online]. Available:

[17] M. Garmendia, “Análisis factorial: una aplicación en el cuestionario de salud general de Goldberg, versión de 12 preguntas”, Rev. Chilena de Salud Pública, vol.11, no.2, pp.57-65, 2007. [Online] Available:

[18]L.M. Zita, G.E. Figueroa, and H.L. Narváez, “Impacto de los atributos determinantes de un sanitario seco urbano en la aceptación del consumidor”, Revista internacional de contaminación ambiental,, vol.33 no. 04, pp. 671-679, March 2017. [Online]. Available:

[19]L. Zhu, Z. Zhao, Y. Wang, Q. Huang, Y. Sun and D. Bi, “Weighting of toilet assessment scheme in China implementing analytic hierarchy process”, Journal of Environmental Management, vol. 283, 2021.“tobe published”, [Online].Available:

[20]V. Kumar, and B. Chandra,” An application of theory of planned behavior to predict young Indian consumers' green hotel visit intention”, Journal of Cleaner Production, vol.172, no.20, pp.1152-1162, January 2018. [Online]. Available:

[21]P.P. Regalado, C.A. Guerrero, and R.F. Montalvo, “Una aplicación de la teoría del comportamiento planificado al segmento masculino latinoamericano de productos de cuidado personal “, Revista EAN Escuela de Administración de Negocios, no.83, pp. 141-163, July-December 2017. [Online]. Available: https://doi: 10.21158/01208160.n83.2017.1821.
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