The amount of clusters needs to be determined [35]. An suitable number of subgroups was

The amount of clusters needs to be determined [35]. An suitable number of subgroups was determined determined by a cutoff worth of 15 along with the largest distance amongst clusters (vertical lines) inside the dendrogram [37] (Figure 1). K-means clustering, which makes it possible for the GYY4137 Cancer researcher to pick the proper variety of clusters for the analysis, was conducted applying Ward’s method to partition the dataset into suitable subgroups, e.g., [25,35]. The maximum iterations have been adjusted from 10 to 99 to prevent any problems with early convergence within the solution. Convergence was accomplished in 12 iterations. Immediately after person cases have been assigned to the two clusters, evaluation of variance (ANOVA) was used to determine the magnitude of difference in between the variables of interest and cluster membership. Chisquare analyses had been made use of to determine significant differences amongst the cluster groups’ categorical demographics (e.g., age, sex, education, loved ones income, and political ideology)., 13, x FOR PEER REVIEW7 ofWater 2021, 13,7 ofthe cluster groups’ categorical demographics (e.g., age, sex, education, family revenue, and political ideology).Figure 1. Dendrogram output applying Ward Linkage to decide quantity of clusters.Figure 1. Dendrogram output utilizing Ward Linkage to identify variety of clusters.two.five. LimitationsUsing non-probability opt-in Alvelestat custom synthesis sampling have to be acknowledged as a limitation. Despite the fact that public opinion analysis normally uses non-probability opt-in sampling [31], the sample Working with non-probability opt-in sampling has to be acknowledged as a limitation. Altmay have bias, as not all types of men and women have access for the online and not all types hough public opinion analysis usually uses non-probability opt-in sampling [31], the samof men and women will answer surveys [32]. In addition, the survey focused on water and ple may have bias, as not all forms of men and women have access to the web and not all respondents might have felt pressured to conform to their perceived norm about water forms of folks will answer surveys [32]. In addition, the survey focused on water and conservation [39]. respondents may have felt pressured to conform to their perceived norm about water conData were collected in the course of a politically contentious time period in the U.S. [40], possiservation [39]. bly altering respondents’ political viewpoints within the short term. As an example, a partisan divide inside the U.S. public was caused by the 2020 Presidential Election, together with the Republican incumbent obtaining the biggest partisan gap in approval rating known from polling2.5. LimitationsWater 2021, 13,8 ofdata [41]. In addition, the death of George Floyd, a Black man who was killed in police custody in Minneapolis, sparked protests around the country [42]. The U.S. public was divided in their opinions of what brought on the protests, with 45 of Republicans and 84 of Democrats believing the protests had been as a consequence of deep-rooted mistreatment of Black people today within the country [42]. One more limitation was that data have been collected during the coronavirus pandemic, which might have influenced how respondents participated in the survey. For instance, the coronavirus pandemic triggered quite a few public spaces, for example libraries and web cafes, to temporarily close and only residents with internet access had the ability to participate in the on-line survey [43,44]. Also, the coronavirus pandemic enhanced consumers’ engagement with nature (i.e., going to parks, identifying plants and animals) all through the U.S. [45], which.