The Mediating Effect of Quality of Life on Tourism Impact and Support Attitude in Alishan Tribes

The purpose of this study was aimed to analyze the effect of indigenous people’s perceived impact of tourism development on tribal quality of life and the support attitude toward tourism development. The research subjects were indigenous people who were at least 20 years old and came from one of eight Alishan tribes in Taiwan. This study conducted an investigation by random sampling, a total of 850 questionnaires were distributed and obtained 827 valid questionnaires. The valid return rate was 97.29%. Statistical analysis was performed on the valid questionnaires using descriptive statistics and partial least squares (PLS). According to the analytical result, Alishan indigenous people feel the negative environmental impact brought by tourism is the highest, but in terms of quality of life, they also maintain of nature and culture. When the positive economic, environmental, and sociocultural impact of tourism is higher, tribal quality of life and indigenous people’s support attitude toward tourism development will be more significant; however, when the negative economic, environmental, and sociocultural tourism impact is higher, tribal quality of life will be lower and indigenous people will tend to resist tourism development. Quality of life was found to be a moderator between tourism impact and support attitude toward development. This study proposed suggestions for indigenous tribes and the government to develop the tourism sector and introduced specific research directions for future tribal tourism researchers.


Introduction
Indigenous culture is an important cultural asset in Taiwan and part of its cultural heritage. However, due to the impact of modern life, traditional tribal culture has been influenced. In addition, the difficulty of traditional life and obstacles to finding jobs have resulted in the outward migration of tribes [1] [2].
Alishan is one of the important places for the Taiwan Tourism Bureau to promote in-depth tourism for indigenous tribes. It boasts not only natural forest resources but also abundant Tsou indigenous culture, and thus has become internationally well-known. In recent years, due to the increase in tourism, the number of national and foreign tourists visiting the indigenous tribes of Alishan on holidays has continued to increase. Many tribes operate B&B hotels and allow tourists to experience Tsou culture. Because of tourism development, indigenous people in Alishan tribes have obtained more job opportunities. According to studies related to Alishan tribes, tourism results in not only a positive economic impact but also negative economic, environmental, and social culture impacts [3].
Research on tourism impact is valued by researchers in Taiwan and internationally, who have realized that the impact caused by tourism influences people's quality of life [4] [5]. Nevertheless, research on tourism impact for indigenous tribes lacks study on the impact on quality of life. Andereck, Valentine, Vogt and Knopf [6] argued that the tourism industry not only improves quality of life but also allows communities to realize an ideal living environment. Therefore, tourism not only leads to positive and negative impacts on tourist areas but also influences local quality of life [7] [8] [9]. Therefore, it is very important for local residents whether they support tourism. As to residents' attitude toward tourism development, according to the analysis of Nunkoo, Smith and Ramkissoon [10], there have been hundreds of international studies on this issue in the past 30 years. Apparently, tourism development leads to positive and negative effects, and thus the support of residents in tourist areas is extremely important. Residents' support attitude to tourism development [11] is a key criterion for local development of the tourism industry and governmental construction of tourism policy [10]. It is also the most important factor of the sustainable development of communities [12].
Nevertheless, as suggested by Andereck et al. [6], most tourism studies neglect quality of life and tend to focus on impact perception and support attitude. In fact, although the impact of tourism on quality of life and on local areas seems similar, it is different. Research on impact has been concerned about the effect of tourism development on local areas and individuals' agreement and support; as to quality of life, studies have analyzed the satisfaction of individuals and families on life [13]. Uysal, Sirgy, Woo and Kim [8] stated that most studies on tourism impact focus on the impact of tourism on destinations (economic, environmental, and social culture impact) and residents' support attitude, but they do not pay attention to the relationship between quality of life and tourism impact. Open Journal of Applied Sciences Thus, tourism development could be adopted as a dependent variable to analyze the moderating effect of quality of life. According to the backgrounds and questions of this study, the following goals were proposed: 1) To analyze the perceived effect of tourism impact by indigenous people in Alishan on quality of life. 2) To analyze effects of tourism impact and quality of life perceived by indigenous people in Alishan on support attitude toward tourism development. 3) To analyze the moderating effect of quality of life between tourism impact and indigenous people's support attitude toward tourism development.

Research Framework and Hypothesis
Previous studies have demonstrated the correlation between tourism impact and residents' support attitude. Residents' attitude to support tourism is influenced by the economic benefits resulting from tourism [14]  According to research findings of Perdue, Long and Allen [18], residents' tourism impact perception is significantly associated with attitude towards tourism development. Sirakaya, Teye and Sonmez [19] stated that residents' tourism impact perception influences local support for tourism development. When residents' perceived positive tourism impact is more significant, they will be more likely to support tourism industry. Ko and Stewart [20] studied residents' tourism impact perception and attitude and realized that residents' positive cognition of tourism impact directly and positively influences support toward tourism, while a negative cognition of tourism impact negatively influences support for tourism. Yu [9] studied residents in Indiana State's Orange County and recognized that the tourism impact degree is associated with the tourism-related

Research Area
Alishan Township is located in the east of Chiayi County in Taiwan

Research Subjects and Sampling
According to the review of Nunkoo, Smith and Ramkissoon [10]

Research Questionnaire
The research questionnaire included four parts. First is the tourism impact cognition scale, which has 40 questions and 6 factors. It aimed to explore indigenous people's perceived positive and negative economic, environmental, and sociocultural impact on the tribes resulting from tourism development. The design of the sub-scales was based on the tourism impact towards tribes' research [1] [2] [3] [22] [23]. Part 2 of the questionnaire was a scale on the quality of life of indigenous tribes and included 34 items and seven factors: sense of tribe, maintenance of na-Open Journal of Applied Sciences ture and culture, public facilities, taxation and subsidy, economic power, public security, and tribal life. The scale was designed according to the scales of quality of life of Andereck and Nyaupane [7], Sirgy and Cornwell [24], and Sirgy, Rahtz, Cicic and Underwood [25]. The scales developed by previous scholars mostly focus on communities and the items do not match the lives of indigenous tribes in Taiwan. The researcher used the experience of training volunteer guides in the eight tribes to understand the tribal situations. Thus, in addition to the previous studies, the researcher designed the scale of the quality of life according to practical experience.
Part 3 of the questionnaire was the scale of attitude towards tourism development. The scale included five items and aimed to explore indigenous people's support and satisfaction with tourism development in the tribes. The scale was based on the research of Gursoy, Jurowski and Uysal [15], as well as the instrument developed by Lankford and Howard [11]. Scores for the three scales ranged from 1 to 5, with answers ranging from "strongly agree" to "strongly disagree". The last part is the demographic variables background of indigenous people, including gender, marital status, age, education level, monthly income, and living tribe.

Data Analysis
As to the valid questionnaires retrieved, the steps of the statistical analysis were as follows. First, SPSS for Windows 22.0 was used to analyze the distribution of the indigenous people's demographic variables through frequency distribution and percentages of the descriptive statistics. Second, Warp PLS 6.0 and partial least squares (PLS) was used to analyze the reliability and validity of the scales of tourism impact, quality of life of indigenous tribes, and support attitude toward tourism development, as well as the causal relationships among variables. Measurement of reliability and validity was performed using the composite reliability (CR) and Cronbach's α, which needed to be equal to or more than 0.70 [26] [27].
The convergent validity of the latent variables was validated using factor loadings of the observed variables that were equal to or more than 0.50 [28]. In addition, for the discriminant validity, this study adopted the standard of Chin [29], who proposed that the square roots of the average variances extracted of the latent variables should be higher than the covariance relationship between one latent variable and other latent variables in the model, in addition, that the square root of the AVE should be at least more than or equal to 0.70 [30]. The model structural relation analysis (hypothesis model) depended on the statistical significance of the standardized path coefficients and model's explained power, which was measured by R 2 [28].

Characteristic Analysis of the Valid Samples
Among the 827 valid questionnaires retrieved, 368 were males (44.5%) and 459 were females (55.5%). As to marital status, 484 were married (58.6%) and 342 Open Journal of Applied Sciences were unmarried (41.4%). As to age, most of the respondents were aged 21 -30 (232 subjects; 28.1%). As to education, most of them had graduated from senior high schools and vocational schools (475 subjects; 57.4%). As to occupation, most of the respondents worked in the service industry (279 subjects; 33.7%). As to monthly income, most of the respondents (503 subjects; 60.8%) earned below NTD 25,000 (USD 833).

Scale of Tourism Impact
According to the analytical result of the scale of positive economic impact the composite reliability was 0.81 and Cronbach's α was 0.72; as to negative economic impact, the composite reliability was 0.79 and Cronbach's α was 0.67. As to positive environmental impact, the composite reliability was 0.87 and Cronbach's α was 0.82; as to negative environmental impact, the composite reliability was 0.88 and Cronbach's α was 0.83. As to positive sociocultural impact, the composite reliability was 0.86 and Cronbach's α was 0.80; as to negative social culture impact, the composite reliability was 0.78 and Cronbach's α was 0.68.
Generally speaking, the composite reliability of the variables was more than 0.70 and met the standard. In other words, the reliability of the scale of tourism impact was acceptable. Although Cronbach's α for negative economic impact and negative sociocultural impact did not reach 0.70, they were close. The composite reliability met the standard and thus was retained. In the scale, the factor loading of item 19 (enhancement of external investment) was 0.43, the factor loading of item 25 (enhancement of sales of tribes' agricultural products) was 0.48, the factor loading of item 26 (tourists collecting agricultural products without permission) was 0.45, the factor loading of item 38 (tribal people working together) was 0.45, the factor loading of item 24 (tribal people's traditional values turn to practicality) was 0.46, and the factor loading of item 30 (commercialized traditional goods and rituals) was 0.47. These four items were deleted.

Scale of Quality of Life in Indigenous Tribes
According to the analytical result of the scale of quality of life in indigenous tri-Open Journal of Applied Sciences bes, the composite reliability of the factors in this scale were higher than 0.70 and matched the standard. Only public security showed a Cronbach's α of 0.64. However, the composite reliability of the factor was higher than 0.70, therefore the factor was retained. Generally speaking, the reliability of scale of quality of life was acceptable. However, the factor loading of item 3 (medical facilities of the tribe) was 0.43 and did not reach the standard of 0.50; therefore, the item was deleted.

Analysis of Discriminant Validity
According to analytical result shown in Table 1, the AVE of the latent variables were all higher than all the correlation coefficients in the same column and row and were higher than 0.70, meaning they met the standard. Therefore, the measurement model of this study showed positive discriminant validity.

Model Analysis
In Figure 2, the values on the lines refer to the path coefficients as standardized regression coefficients (β). The positive tourism impact was found to positively influence quality of life (β1 = 0.65, p < 0.05) and support attitude (β2 = −0.24, p < 0.05); thus, H1 and H2 were supported. In addition, negative tourism impact was found to negatively influence quality of life (β3 = −0.24, p < 0.05); thus, H3 was supported. However, it did not influence support attitude (β4 = −0.02, p = 0.28). Thus, H4 was not supported. Finally, quality of life was found to influence support attitude (β3 = −0.24, p < 0.05); thus, H5 was supported.
As to the explanatory power, R 2 indicates the predictive power of the research model and is the percentage of the explained variance of exogenous variables to endogenous variables. When the value is higher, the predictive power is more

Discussion
First of all, in terms of the impact of tourism in this study, the results show that the indigenous people feel the most negative impact on the development of tourism in Alishan tribe. This shows that the development of tourism brings noise increase, leading to the tribe become overcrowded, traffic conversation, environmental pollution, garbage increase, and natural resources destroyed.  [23], that is, tourism development will bring negative impact on the local. However, since tourism development has negative development, why do indigenous people support it? The main reason is that from the perspective of social exchange theory, although indigenous people feel the negative impact of tourism, they still have a positive impact, so they still support it. According to the analytical result, in order to develop another direction of economic development in indigenous tribes and launch tribal tourism according to indigenous culture, the Taiwan government relies on the support of indigenous peoples since they perceive the positive economic impact of job opportunities, increased tribal revenues, upgrading of material welfare reputation of the tribe, and upgrading of living standards. The results supported past research on positive tourism impact [23]. When tourism development leads to positive impact, residents positively support tourism development Nunkoo and Ramkissoon [31]. In addition, the positive impact resulting from tourism positively influences the quality of life of the tribe, including indigenous people's enhancement of the sense of tribe, preservation of nature and culture, improvement of public facilities, increase of taxation and subsidies, increase of economic power, improvement of public security, and upgrading of tribal life. The findings were

Conclusion
According to the purposes and hypotheses of this study, after empirical analysis, this study came to the following conclusions. First, when indigenous people's perceived positive impact resulting from tourism is more significant, their perceived tribal quality of life will be higher and their support attitude toward tourism development will be more significant. Second, when indigenous people's perceived negative tourism impact is more significant, their perceived negative impact on tribal quality of life will be higher and they will tend to resist tourism development. Third, tribal quality of life is not only influenced by the tourism impact but also affects indigenous people's support attitude toward tourism development. In addition, it is a moderator between impact and support attitude.

Application
First, regarding tourism impact, tourism certainly results in a positive impact, and thus indigenous peoples are not only satisfied with current tourism development but also agree with further tourism development. Nevertheless, negative impacts on the tribes should still be reduced. Hence, regarding tribal tourism development, the tribes can plan visits and ask tourists to park their cars outside of tribal areas to encourage tourists to visit the tribes by walking. They can install rubbish bins that are compatible with the environment to avoid the problems of garbage, traffic jams, and noise. In addition, with governmental subsidies, the tribes can reinforce cultural construction, such as the appearance of should also include Han people as subjects. Second, as to the questionnaire design, since most of the indigenous peoples were farmers, they encountered difficulty in responding to the monthly income item. Therefore, future studies should change it to annual income or total family monthly income in the survey.