Author : Agustina, Haruki
Validity and Reliability of Instruments Assessing Household Satisfaction With 3R-Based Waste Management (Tempat Pengolahan Sampah) and Waste Bank Services in Depok, Indon
European Journal of Molecular & Clinical Medicine,
2020, Volume 7, Issue 10, Pages 2347-2360
Solid wastes in Indonesia are managed by two types of units regulated by two different ministries. Households are the end clients for both units; thus it is important to assess their satisfaction with the quality of the waste management services. To assess each unit, we developed survey instruments that incorporate the 3R concept and tested each instrument’s construct validity and reliability. The survey was conducted in Depok City, Indonesia, interviewing household members responsible for domestic waste management. The sample size for each unit was 30 households. Construct validity was tested using confirmatory factor analysis; reliability was measured using the Cronbach-α coefficient. Results show that both instruments have fairly valid constructions (communality >50%) while performing with good reliability. The final number of items in each instrument is similar for the TPS3R and waste bank instruments.