An extended TPB model of waste-sorting intention: a case study of Indonesia

Abstract

PurposeThis research investigates factors affecting the intention to sort waste. Specifically, this research aims to develop a waste-sorting intention model by extending the theory of planned behavior (TPB) model and to test the model to ensure the model's goodness-of-fit, validity and reliability.Design/methodology/approachThis research used a quantitative research methodology. Data were collected from 460 respondents using an online questionnaire. Some statistical analyses were performed to analyze the data: descriptive statistics, factor analysis, confirmatory factor analysis-structural equation modeling (CFA-SEM), SEM and Cronbach's alpha analysis.FindingsThe result shows that the intention to sort waste was directly affected by attitude, subjective norms, perceived behavioral control (PBC), moral obligation and facility support. Environmental concerns, waste-sorting knowledge and time availability indirectly influenced the intention to sort waste. The testing indicated that the proposed model was fit, valid and reliable.Practical implicationsThe model provides a more comprehensive understanding of waste-sorting intention. The central and local governments can use the results to encourage waste-sorting intention in the community.Originality/valueThis research is believed to be the first study to develop and test the waste-sorting intention model that extends the TPB model by incorporating moral obligation, facility support, policy and regulation support, environmental concerns, waste-sorting knowledge and time availability into the traditional TPB model.

The Role of Awareness of Consequences in Predicting the Local Tourists’ Plastic Waste Reduction Behavioral Intention: The Extension of Planned Behavior Theory

“…Numerous research studies in the literature relating to waste have revealed that subjective norms have had an impact on waste minimization intentions [51,53,77]. Additionally, Rakhmawati et al [78] discovered that social norms significantly influenced visitor waste reduction. However, a study by So et al [79] found that intentions to reduce plastic trash in Hong Kong were unaffected by subjective standards.…”

Modeling Predictors of Medication Waste Reduction Intention in Algeria: Extending the Theory of Planned Behavior

“…In the same context, most of the studies that investigated intentions and behavior to reduce waste used an extended version of the TPB model instead of the original version. For instance, TPB has been extended to investigate the intentions to reduce food waste [ 47 , 48 , 49 , 50 ], plastic waste [ 51 ], waste-sorting [ 45 , 52 , 53 , 54 ], and energy consumption [ 55 ]. In addition, Aruta [ 56 ] used the extended TPB to explore intentions to reduce plastic use as one of the plastic waste reduction practices.…”

“…[ 54 , 64 ] found that subjective norm has a significant effect on waste separation intention. In Taiwan, Fang et al [ 53 ] also found that social norms have a significant effect on waste reduction among visitors. Nevertheless, a study by So et al [ 51 ] showed that subjective norms had a non-significant influence in Hong Kong on plastic waste reduction intentions.…”

Environmental Concern: Does It Drive Green Purchase Intention of Sustainable Packaging?

“…(Kamalanon et al, 2022). Intense SN over behavior and strict control over will increase the actions taken, particularly when the friends, families, or relatives approve of an action, and might impact intention and behavior (Rakhmawati, Damayanti, Jati, & Astrini, 2023). The norm approach is more effective in establishing and fostering positive behavior in a collectivist culture like in Indonesia (Rahmafitria, Suryadi, Oktadiana, Putro, & Rosyidie, 2021).…”