1. Introduction
Many nations and regions have exploited natural resources in tandem with the rapidly expanding global economy and industrialization, which has resulted in many issues, including global warming and climate change [
1,
2,
3]. Plastic pollution is one of the major challenges for governments [
4,
5,
6]. It is a severe environmental problem that endangers both the inhabitants of the planet and the planet itself. Single-use plastic harms ecosystems and wildlife because it takes centuries to disintegrate and can stay in the environment for decades [
7]. Due to its durability and resilience to degradation, plastic—a helpful substance that promotes economic growth—has developed into a risk to the environment [
5,
8]. The improper disposal of plastic waste results in litter in various ecosystems and threatens environmental sustainability [
9]. Notwithstanding plastics’ comfort and safety benefits, their single-use nature and improper disposal outweigh these advantages. Because of the detrimental effects of plastic on the environment and human health, environmental stewardship issues are receiving more and more attention from the scientific community, governments, media, and the general public [
6]. For society to function correctly, plastic must be used and disposed of properly [
10,
11]. People worldwide use and consume single-use plastic goods such as plastic bags, bottles, straws, and so on [
12]. These items, however, cause significant environmental and societal issues, such as plastic pollution, GHG emissions, resource depletion, waste management issues, and so on. It is critical to analyze and modify public attitudes about plastic usage and avoidance [
13] to solve these issues. Nevertheless, one of the most important strategies to avoid plastic use and reduce its waste is to develop pro-environmental and plastic avoidance behavior in the public. However, this will not be possible without a proper understanding of the behavioral factors of peoples’ plastic avoidance behavior.
Plastic avoidance behavior is a pro-environmental behavior that tries to limit plastic use and waste, which has significant environmental and human health consequences. The value–belief–norm (VBN) hypothesis [
14], which maintains that behavior is influenced by societal norms, personal values, and environmental views, is another paradigm used to investigate pro-environmental behavior. Heidbreder et al. [
15] added two variables—perceived efficacy and felt responsibility—to a VBN-based model to analyze young people’s desire to reduce PM2.5 in China. They also discovered that personal norms moderated the impacts of values and beliefs on intention. The third paradigm used to investigate pro-environmental behavior is the norm activation model (NAM) [
16], which holds that personal norms triggered by knowledge of consequences and ascription of responsibility influence behavior. Jacobsen et al. [
17] used the NAM-based model to research how customers in economically developed nations, including China, avoid and recycle plastic packaging trash. They discovered that personal norms, which were favorably associated with avoidance and recycling behaviors, were positively correlated with knowledge of consequences and assigning blame. Moreover, they found that contextual variables, such as the accessibility and availability of recycling facilities, influenced the association between individual norms and recycling behavior. The so-called Attitude–Behavior Gap, which often occurs even among responsible consumers, is a substantial divergence between attitude and conduct concerning responsible consumption. Mühlthaler and Rademacher [
18] attempted to enhance knowledge of the relevant Attitude–Behavior Gap, its impacting elements, and consumer social responsibility. This review forms the foundation for a single-source, cross-sectional study that intends to evaluate the Attitude–Behavior Gap influencing the use of plastic bags. The study demonstrates the gap’s existence and the statistically significant influence of many influencing factors.
Several factors may affect plastic avoidance behavior depending on the theoretical framework and the particular behavior being studied. These factors include SNs [
12,
19,
20], attitude [
21,
22,
23], behavioral control [
24,
25,
26], behavioral concern [
27], and behavioral intention [
12,
22,
28]. The theory of planned behavior (TPB) [
26,
29] explains the relationship between these variables and behavior. The TPB holds that behavioral intention (BI) determines behavior, whereas attitude, subjective norm, and perceived behavioral control determine BI. TPB is one of the most frequently used frameworks to explain pro-environmental behavior. Sun et al. [
30] included three variables—convenience, environmental concern, and ethical belief—in an expanded TPB model to better assess customers’ intention to use plastic bags in China. Sun et al. [
30] discovered that whereas environmental concern and ethical conviction were inversely correlated with the intent to use plastic bags, attitude, subjective norm, perceived behavioral control, and convenience were all favorably correlated. Additionally, they discovered that attitude served as a mediator between environmental concern and ethical conviction and purpose.
Furthermore, government PIs have also impacted the pro-environmental behaviors of the public [
7], PI is a significant factor in reducing single-use plastic [
7,
31,
32], and policy effectiveness is an essential determinant of pro-environmental behavior [
33,
34]. Understanding the factors that impact consumers’ plastic avoidance behavior can aid in developing practical initiatives and policies to promote this behavior. This literature overview covers some of the most current research investigating the factors influencing plastic avoidance behavior in China using various theoretical frameworks and approaches [
12,
35,
36]. Although several initiatives have been suggested to promote the reduction of plastic waste, little is known about the behavioral aspects impacting the avoidance of single-use plastics. This study aims to analyze the behavioral elements influencing consumers’ decisions to avoid single-use plastics and pinpoint the facilitators and obstacles that affect their plastic avoidance behavior.
This study investigates the behavioral factors that impacted residents’ single-use plastic avoidance behavior (SPAB) in selected cities of Jiangsu province in China. This study is based on the TPB, which states that attitude, subjective standards, and perceived behavioral control all influence behavioral intentions. This study explores how attitude affects SPAB through plastic-related environmental behavior intention (PABI) and environmental concern (PREC). Moreover, it also examines how SNs influence SPAB through PREC and PABI. Furthermore, it also explores the how perceived behavioral control impacts SPAB through the channel of PABI. Since the government’s PIs could be influential in determining SPAB, this analysis also analyzes how PI influences PABI and PREC and, thereby, SPAB through the channels of PABI and PREC. For this purpose, the authors used a primary data-based research approach by collecting data through a questionnaire survey. The structural equation modeling method was used to estimate (s). The findings provide deeper insights into how behavioral factors determine SPAB in China. This study’s results will help create strategies and initiatives to encourage sustainable plastic usage.
3. Research Methodology
This study utilized a cross-sectional method and a self-administered survey approach for research. Owing to the reliable and responsive measurement characteristic [
59], the interval 5-point Likert scale was used for the questionnaires. The target population in the current research was the Mainland Chinese from the four major cities in Jiangsu province—Nanjing, Wuxi, Changzhou, and Suzhou. Based on the 22 items in the survey, the sample size should range from 88 to 220. According to [
60], the suggested item-to-response ratio is between 1:4–1:10. The sample size of more than and less than 2000 is considered significant. The sampling distribution-related characteristics are affected if the sample size is too small [
61]. In this study, a sample size above 400 was considered sufficient to represent the population. Ting et al. [
39] considered 400 an appropriate sample size.
Before conducting the survey, five experts in the relevant field designed and tested the draft questionnaire. The questionnaire questions were revised based on their feedback and suggestions. In [
39], three experts inspected and verified the questionnaire. Following [
39], the authors conducted a pilot test for 30 samples for the confirmation of validity of questionnaire items. A reasonable sample size for pilot testing ranges from 30–50 [
62]. Therefore, 30 sets of questionnaires were distributed in Nanjing, Changzhou, Wuxi, and Suzhou on 20 July 2022 for the reliability and normality tests. The internal consistency of the questionnaire was tested by the measure of Cronbach’s alpha [
63]. Results of the pilot testing revealed that Cronbach’s alpha ranged from 0.784 to 0.916, which was acceptable. In this study, the normality test was carried out using the skewness and kurtosis tests, since they are frequently used to depict the normal distribution of independent and dependent variables in terms of shape and properties [
64]. The pilot test showed that the skewness ranged from −1.082 to 0.523, and the kurtosis ranged between −1.371 and 1.179. These values indicate a normal distribution, within ±3 for skewness and ±10 for kurtosis [
65].
3.1. Data Collection
The questionnaire was created and distributed online, ensuring anonymity and random distribution. To prevent participant subjectivity, we randomly assigned the items for each variable in the questionnaire. During pre-research, we gathered information from 86 respondents, and after analyzing that information, we redesigned the survey. Then, without offering incentives, we distributed an electronic questionnaire to all consumers. According to the literature, delivering presents may sway participants to predict the researcher’s objectives [
19,
66]. Following [
19], data from the respondents were gathered using a purposive sample approach, and 517 surveys were obtained. Due to repeated responses with the same I.P., incompletes, and response biases, unreliable surveys were eliminated. After the pilot testing, the data were collected using online platforms from 25 July 2022 to 10 September 2022. The questionnaire was drafted in two languages—Chinese and English. A total of 517 sets of responses were received. Moreover, 421 usable responses were finalized, which confirms that the valid response rate was 82 percent.
3.2. Data Analysis
3.2.1. Demographic Properties
The descriptive and demographic statistics of respondents summarized in
Table 1 show that 248 male (58.91%) and 173 (41.9%) female respondents provided valid responses. Regarding age, about 398 (94.5%) respondents were older than 18 years, whereas 154 (36.58%) respondents were aged between 18–30 years, followed by 126 (29.93%) respondents aged between 31 to 40 years. This reveals that the response rate of the respondents aged 18 to 40 years provided valid responses. Considering the education levels of the respondents, the respondents with graduation, post-graduation, and higher education levels were 158 (37.53%), 109 (25.89%), and 62 (14.73%), respectively. Out of 421 respondents, 282 (66.98%) were unmarried or single, 128 (30.40%) were married, and 11 (2.61%) respondents preferred not to reveal their marital status. Moreover, 255 (60.57%) and 166 (39.43%) lived in urban and rural areas, respectively.
3.2.2. Descriptive Statistics of the Constructs
The descriptive statistics summary in
Table 2 reveals that the mean value of the items ranged from 2.99 to 3.89. PREC1 has the lowest mean value, whereas PABI3 has the maximum mean value. PBC2 and PABI1 have the lowest standard deviation of 0.052. SPAB4 has a maximum standard deviation of 0.067. The mean value of the dependent variable SPAB ranged from 3.05 to 3.32, with its normal deviation range from 0.057 to 0.067. The mean value of attitude (AT) ranged from 3.53 to 3.58 with standard deviation ranging from 0.059 to 0.065.
Furthermore, the mean value of SNs ranged from 3.15 to 3.18, whereas the mean of the items of PBC ranged from 3.46 to 3.54. PREC has the range of mean value from 2.99 to 3.08. PABI has the mean value range from 3.79 to 3.89, whereas the PI mean ranged from 3.67 to 3.73.
3.2.3. Normality Test
The study assessed the normality property of the data using skewness and kurtosis. The results in
Table 2 show that the skewness ranged from −0.935 to 0.108. The kurtosis range of the items was between −1.215 and 0.256. The item PABI2 has the lowest skewness value, and PREC3 has the highest value, whereas the item PABI1 has the highest kurtosis value and SPAB4 has the highest value of −1.215. The condition for normality was met since all the items had skewness values within the benchmark of ±3 and kurtosis values within the benchmark of ±10.
3.2.4. Scale Measurement
Cronbach’s alpha scores (
Table 3) were higher than the threshold level of 0.7 [
63]. SPAB had the lowest value of 0.74, whereas AT, PBC, and PI had a value of 0.85 at the highest end. Since the values of Cronbach’s alpha were higher than 0.7 for all variables, this confirms the solid internal consistency of the constructs.
3.2.5. Reliability, Validity, and Dimension Assessment of the Constructs
The constructs’ validity was determined by confirming the values of Cronbach’s Alpha, composite reliability (CR), and average variance extracted (AVE), given in
Table 3. The reliability and validity analysis results show that all constructs’ measures fulfilled the required levels of Cronbach’s Alpha, CR, and AVE estimates with the cuts of 0.7, 0.7, and 0.5, respectively. Convergent validity was tested using average variance extracted (AVE), CR, and factor loading. The composite dependability rating varied from 0.76 to 0.86 (
Table 3), indicating that the structures met the suggested requirements outlined in [
67]. The factor loadings (FLs) of the items ranged from 0.64 to 0.86, showing the values above the cut-off value of 0.5 [
65]. The CFA model was used to assess the validity of constructs.
Table 4 summarizes the goodness-of-fit index findings of the CFA model. The results demonstrate that all indices meet the recommended criteria suggested in [
67,
68].
3.2.6. Structural Equation Modeling
Market research and social science both employ statistical approaches such as structural equation modeling (SEM). The particular research issue, the available data, and the setting influence the choice of method. Each approach has advantages and disadvantages. SEM is a multivariate data analysis technique for examining intricate interactions between constructs and indicators [
65,
75]. Covariance-based SEM (CB-SEM) and partial least-squares SEM (PLS-SEM) are two techniques that may be used to estimate it. PLS-SEM is used to forecast and clarify causal linkages, whereas CB-SEM is mainly used to confirm hypotheses [
75], whereas conjoint analysis, conversely, is a way to determine customer preferences for items or services based on their features. It may be accomplished using various strategies, including rating, ranking, and discrete choice experiments (DCEs) [
76]. The latter are consistent with economic demand theory and are based on random utility theory [
76]. Discrete-choice methods (DCMs) are a more prominent family of approaches, including DCEs and multinomial logit, nested logit, and mixed logit models. DCMs may be used to examine consumer preferences, willingness to pay, market shares, and policy implications [
77], whereas the best–worst scaling (BWS) technique is employed to assess the importance of attributes or items by requesting respondents to identify the best and worst options from a group of alternatives. This method can be applied to obtain information on preferences, attitudes, or perceptions [
78]. On the other hand, latent profile analysis (LPA) is a technique for figuring out unobserved sub-groups or profiles of people based on their reactions to several observable factors. Given the latent profile, LPA assumes that the observed variables are conditionally independent [
79]. Kautish et al. [
80] used the PLS-SEM method for the analysis of associations among product involvement, perceived marketplace influence and choice behavior. Since SEM may be used to evaluate particular assumptions regarding the correlations between variables, which is useful in theory-driven research, following [
4] we used SEM to test the proposed hypotheses.
The hypotheses were tested after analyzing internal consistency, reliability, and validity. It is necessary to satisfy the threshold level of model fit for SEM when testing hypotheses. After the goodness-of-fit index of the SEM passes the criteria, the next step is to measure the hypotheses. To assess the model fit of SEM, we used C.M.I.N./Df, G.F.I., CFI, NFI, TLI, R.M.R., and R.M.S.E.A.
Table 5 displays the values of the fit index. G.F.I., CFI, TLI, NFI, and CMIN/DF readings are all larger than the threshold level. R.M.R. and R.M.S.E.A. levels should be less than the cutoff level. As a result, the projected R.M.R. and R.M.S.E.A. values are less than the threshold level. As a result, the predicted values represent the goodness-of-fit index. The software SPSS and AMOS were used for the analyses.
When the structural model meets the goodness-of-fit index requirements, the estimated (
β) coefficient and
p-value help evaluate the hypotheses.
Figure 3 depicts the estimated structural model of the research. In summary, the preceding sections demonstrate that our reliability test meets the construct validity consistency requirements and that measuring discriminant validity is suitable (
Table 6). Additionally, the structural model meets the goodness-of-fit requirement. Based on the investigation findings, it is safe to proceed with hypothesis testing using standardized path coefficients (
β) and
p-values. Path coefficients were used as a standard to measure the severity of the impact. The Harman single-factor test was used to investigate the common method bias. The research indicated that no one element accounted for more than 50% of the variation, showing that the study had no common factor bias.
5. Conclusions
This study aimed to examine the behavioral determinants of single-use plastic avoidance behavior in the selected study area of Jiangsu Province, China. The study examined how attitude, SNs, and perceived behavioral control influence plastic avoidance behavioral intention and plastic-related environmental and behavioral concerns that finally determine single-use plastic avoidance behavior. In addition, the study also considered how PI affects PABI and PREC. The data were collected using an online questionnaire survey in which 421 valid responses were used for SEM model estimations. The results show that attitude positively affects PABI, which strongly influences SPAB. However, the attitude positively influences PREC, but the influence is insignificant. However, PREC positively and strongly influences SPAB, whereas SNs also positively impact the former. In addition, the estimations also reveal that PI plays a pivotal role in determining SPAB through the channels of PABI and PREC. The impact of PI on PABI and PREC is positive and significant.
The findings of the study Imply that educational initiatives, neighborhood gatherings, community engagement, and public awareness efforts can help households better understand the value of avoiding plastic and its detrimental environmental effects. Incentivizing households to reduce their plastic usage can encourage them to take action. Examples of incentives include discounts for reusable containers or bags and rewards for participating in plastic recycling programs. The Chinese government can impose regulations, such as levying fees on plastic bags or banning single-use items, to promote plastic avoidance. This will encourage people to avoid using plastic and reduce the plastic waste households generate. Collaborating with companies and community groups can help spread the word about plastic avoidance and inspire households to take action. This may involve partnering with local retailers to promote reusable bags or containers, or organizing clean-up activities with community organizations. Highlighting households that have successfully reduced their plastic usage can serve as examples for others. This can be achieved through social media campaigns or public forums that showcase the achievements of these households.
The study results imply that PI is essential to minimizing single-use plastic usage in China. Policymakers should develop and execute regulations that address attitudes, SNs, and perceived behavioral control, as these elements impact their intention and concern for plastic avoidance behavior. Policies include public awareness campaigns, social norm nudges, incentives or disincentives, and infrastructure development for plastic alternatives. In this regard, the government should frame innovative environmental education strategies to educate the public about environmental issues, their remedies, and the impact of individual behavior. Furthermore, using social media platforms would help promote pro-environmental behavior and adopt cultural values that support environmental conservation. In this way, policymakers can foster a more environmentally conscious attitude and behavior among residents, which would be productive in lowering the negative environmental consequences of single-use plastic.