Relationship between perceived organizational support and work engagement in Mexican workers. Relación entre el apoyo organizacional percibido y el engagement laboral en trabajadores mexicanos

Introduction: The organizational support and the work engagement are important elements aligned with the psychology perspective of occupational health. Understanding the interaction between both variables in a context little explored as México and Latin America give an interesting contribution to its analysis. Objective: Analyze the relationship between perceived organizational support and work engagement in Mexican workers. Method: Cross-sectional and correlational design were employed in this study. A regression analysis was performed on the data obtained of the Survey Perceived Organizational Support (SPOS) and Utrecht Work Engagement Scale (UWES) in their short and Spanish version. The sample consisted of 292 Mexican workers of the tertiary sector. Results: Spearman correlation showed significant but weak correlations only between one dimension of perceived organizational support (satisfaction of socio-affective needs) and two dimensions of work engagement: vigor (rho = 0.33, p < 0.01) and dedication (rho = 0.28, p < 0.01). Conclusions: The evidence found does not support an important relationship between the two variables unlike previous studies, but those were made in different contexts to Latin America and some were related to other variables. So, it is proposed to investigate relationship of perceived organizational support with the engagement considering other variables as mediating.


INTRODUCTION
Occupational health is an increasingly important field in the global labor context. Since the early 2000s, psychology began to take a look at the positive aspects of human behavior under three dimensions: 1) subjective experiences, 2) individual traits and 3) the group (Seligman, 2005;Seligman & Csikszentmihalyi, 2000).
In the new millennium, a new field called Positive Occupational Health Psychology (POHP) has arisen, seeking for better practices, structures and managements process to benefit workers' health (Salanova, 2009;Salanova, Llorens, & Martínez, 2016). The POHP is defined as scientific research of the optimal functioning of individuals and groups' health in organizations, as well as the effective psychosocial wellbeing management at work and in development of healthy organizations (Llorens, Salanova, & Martínez, 2008;Salanova, Martínez, & Llorens, 2014).
Perceived organizational support (POS) and work engagement can be identified within the theorical perspective above mentioned, particularly in the subjective experiences dimension (Seligman, 2005;Seligman & Csikszentmihalyi, 2000).
In Mexico is very important to explore perceived support and feelings of the people (like the engagement) in their workplace. For example, the reasons for abandonment of employment associated with a weak support to professional aspirations, poor working conditions and conflicts with ssupervisos have represented 61% in the last five years (Instituto Nacional de Estadística, Geografía e Informática, 2020).
The above represent different problems in organizations. When a worker does not feel good in its workplace the consecuence could culminate in organizational failure derived of increased costs and decreased productivity and quality (World Health Organization, 2010). Considering the employees needs can give financial benefits to enterprises (Henderson, 2020), even in the cases that the rotation are planned as temporary workers (De Stefano, Bonet, & Camuffo, 2019).

Perceived Organizational Support
The POS can be understood as the level wich the employees feel that the organization appreciates their contribution, agrees to exchange ideas with them, and take care of their well-being (Eisenberger, Huntington, Hutchison, & Sowa, 1986). According these authors, people with better job performance, lower absenteeism and higher expectations about the reward of their performance are those who perceive higher support from the organization.
This variable emerges as a construct embedded in social exchange, particularly focused on the principle of reciprocity (Armeli, Eisenberger, Fasolo, & Lynch, 1998;Eder & Eisenberger, 2008;Eisenberger, Armeli, Rexwinkel, D.Lynch, & Rhoades, 2001;Eisenberger et al., 1986). Gouldner (1960) considered that people will support and will not harm those who have supported them. Support is contingent on the perceived value of the benefit received by the other. These assertions are supported by theories in moral psychology; particularly Gilligan (1985), considers justice, care, responsibility and reciprocity as values of great relevance in decision making (García-Avitia, Preciado-Serrano, Ángel-González, & Luna Bernal, 2018).
In addition, it is possible see the relevance of the POS theory has been growing through recent history of organizational psychology and has become a key aspect of occupational health. One of the purposes of this paper is to enrich the literature developed about POS. Particularly in Mexican context, the commitment have been the variable most studied in relationship whit the POS (Camacho & Arias, 2012;Littlewood, 2003;Ojeda, Talavera, & Berreleza, 2016, 2017Tejada & Arias, 2004), so seeking integration with other work variables represent a valuable contribution.

Work engagement
Work engagement can be defined as a cognitive-affective positive state that connects the workers to activities that they perform in their jobs feeling able to meet its demands. This feeling is persistent over time and not only focused on a specific object, situation or behavior (Salanova, Schaufeli, Llorens, Peiro, & Grau, 2000).
The engagement began to be studied by Kahn (1990), who mentions an "engaged state" that people experience while working under great readiness to fulfill their obligations. Subsequently, some authors began to conceive work engagement as the counterpart of burnout syndrome (Leiter & Maslach, 1999;Leiter & Maslach, 2003;Maslach & Leiter, 2001). On the other hand, Salanova et al., (2000) perspective propose that work engagement is an autonomous variable, not just the opposite side from burnout in a continuum variable.
From the last theoretical perspective mentioned, the work engagement is structured by three dimensions: vigor, dedication and absorption. Vigor refers to high levels of energy and mental resilience while people works, as well as a deep desire to carry out the activities. Dedication is about giving meaning to work, feeling inspiration, enthusiasm, pride and perceiving work as a positive challenge. Absorption is characterized by high concentration levels and experience happiness while working (Salanova et al., 2000;Schaufeli, Salanova, González-Romá, & Bakker, 2002).
As you can see, work engagement represents a contemporary theory perfectly aligned to the occupational positive psychology (Bakker, Schaufeli, Leiter, & Taris, 2008), with growing importance for understanding organizational development. In Mexico there are different studies about the work engagement, where the results show associations with different variables. For example, Soto-Pérez, Sánchez-García & Núñez-Ríos (2020) watch an important modular relationship from intrinsic job satisfaction toward teacher's citizenship behavior as well as orientation towards results. Castro, De León, Acevedo, & Ramírez (2018) identified a little effect on the resilience. Ocampo, Juárez, Arias, & Hindrichs (2015) and Contreras (2015) stablished significative differences between variables psychosocial. Despite above, have been do not investigate the relationship with the POS, thus, another purpose of this research is adding evidence on their relevance.
There are some studies that have propose models in which POS and work engagement interact in relation with other variables (see table 1). These studies have been done mainly in Europe and Asia. Correlation (r) between both variables is often seen, in different researches, as moderately strong, where the independent variable (POS) explain up to 50% of the variance according with the coefficient of determination (r 2 ).  Fouzia et al., (2018) analyzed how POS, indirectly and directly, influences on citizenship behavior through wellbeing and work engagement. Another study is such by Gokul et al., (2012) who analyzed that the effect of POS and dedication on affective commitment is stronger together.
In this paper, the objective was to analyze the relationship between POS and work engagement in a context that hasn´t been explored before, such as Mexico and Latin America. Research hypothesis was that: high perceived organizational support influences positively work engagement.

Design
Cross-sectional and correlational design were employed in this study. The study used a convenience sampling.

Instruments
Survey of Perceived Organizational Support (SPOS). Scale created by Eisenberger et al. (1986), translated to Spanish by Marbeti (2001; cited by Ellenberg & Rojas, 2007;Flores & Gómez, 2018) with a Venezuelan sample and validated in Mexico by the authors of this study. Each item consists of a Likert scale for measurement of 7 points ranging from 1 (strongly disagree) to 7 (strongly agree). Through validation in Mexico the scale was reduced to 15 items and was divided in two factors: 1) satisfaction of socio-affective needs, consisting for the items 1, 2, 3, 4, 5, 7, 11, 12, 13 and 15; and 2) sense of recognition, composed for the items 6, 8, 9, 10 and 14. Cronbach's alpha levels were 0.92 and 0.85 respectively.

Participants
Participants for this research were workers of the tertiary sector from Colima, Mexico. The sample was selected from city downtown because of its greater number of organizations of services sector. 27 workplaces accepted to participate in the study, with a universe (N) of 1215 workers. Participants of the sample were 292 (24.03%) workers (130 female and 162 male), with average age of 38.71 years old (SD = 9.92) between 20 and 66 years. Their average years at work were 9.73 (SD = 8.49).

Procedure
Participation in the study was requested by visiting or emailing 122 tertiary sector organizations in the city of Colima. Details about research design and ethical considerations, as confidentiality, were explained to managers. Only 35 agreed to participate and gave tentative dates to apply both surveys. By the time of apply surveys only 27 workplaces really accepted to participate. Questionnaires were applied between March and May 2019. Each worker gave its informed consent and answered the instruments voluntarily.
Inclusion criteria for this study were three: 1) organizations were part of the "Directorio Estadístico Nacional de Unidades Económicas" (National statistics directory of ecomomic units); 2) organizations were from Colima downtown; 3) organizations belonged to tertiary sector. On another hand, the exclusion criteria (once the questionnaires have been answered) were two: 1) if worker didn't reply all the items; 2) if answers showed logical inconsistencies.

Analysis of data.
Statistical Package for the Social Sciences (SPSS) version 19 was used to data analysis. Descriptive statistics were made to know distribution of scores through the average and standard deviation. Then Levene and Kolmogorov-Smirnov tests were performed to identify the homoscedasticity and normality of the sample, the results showed a dispersion of the variance inconstant in different occupational groups (p < 0.5) and a distribution asymmetric in the answers (p<0.05). Therefore, the use of nonparametric test as Spearman correlation coefficient was took, where significance of data were consider according to p < 0.05 and rho > ± 0.25 (Udovičić, Baždarić, Bilić-Zulle, & Petrovečki, 2007).

RESULTS
Considering that SPOS has seven points, the median is identified in the number four, so, it's possible identified a penchant toward high scores through the average. This means that majority workers perceived supported by organization. Principally in aspects of socio-affective needs, for example, item 3 (item with the highest score) reflects that most workers think that the organization where they work, supports them if they need a special favor (see table 2). Regard UWES results, scores were near to highest possible and with a short standard deviation. It means that there are homogenous scores but with positive bias. In other words, the most workers usually experiment an engagement state. So, it is possible identified in the sample high levels of energy, dedication on the work and maybe in lowest levels (but not negatives) concentration while they do their activities (see table 3). Note: items are written in Spanish as they appear in the scale. Table 4 reports the descriptive a correlation analysis, showing that POS has a very good relationship with their dimensions, on the other hand, work engagement has a moderate to good association with theirs. Regarding Spearman correlation between both constructs was significate (p = 0.01) but the size of relationship was less to 0.25, so it may interpreted as absence of relationship (Udovičić et al., 2007).
Despite the above, correlations between Satisfaction of socio-affective needs with engagement in general was identified (rho = 0.25; p = 0.01).
Other relationships with the POS dimension were with vigor (rho = 0.33; p = 0.01) and dedication (rho = 0.33; p = 0.01). Although the correlations were significant, these are poor according the grade of Spearman's coefficient mentioned.
Finally, in the analysis performed should be noted that recognition sense and absorption dimensions did not correlate with any opposing variables according to significance and correlation level required.

DISCUSSION
Perceived organizational support and work engagement are important variables in the knowledge body about worker´s health. So, the objective of this research was to identify statistical relationship between POS and work engagement, particularly between each of their dimensions. Is relevant to emphasize that POS, unlike to other studies in Latin America, has shown a factorial structure with two dimensions (Ellenberg & Rojas, 2007;Flores & Gómez, 2018). This implies a novel relationship between study variables.
The main contribution of this paper was about the correlations between both variables. In general, the constructs did not show a strong relationship although it was significant. This was opposite to research realized by Sulistyo & Suhartini (2019), Dai & Qin (2016) and Rubel & Kee (2013) whose similarity lie in the sample, since they all were from Asian continent. There may be different sociocultural factors that influence the relationship of variables. For example, Glazer (2006) argues that different cultures respond in different ways to the perception of social support at work, where Asians show a more collectivist, structured and stable culture than Latin Americans. Futures studies could deepen the relationship of both variables under a macro spatial perspective.
Regarding the dimensions were determined a correlation between satisfaction of socio-affective needs with vigor and dedication. This is an aspect that contributes to the understanding of the meaning of support in the affective issue to experience higher levels of energy and dedication. Possibly this may be presented in this way in considering that the tertiary sector (to which the sample of the study belongs) is immersed in activities with constant emotional demand that affects workers. Possibly this may be in this way to consider that the tertiary sector (to which the sample of the study belongs) is immersed in activities with constant emotional demand that affects workers (Prada-Ospina, 2019). The International Labour Organization (2016, p. 27) mentioned the assessment of experts from fifty four different countries about the most vulnerable occupational groups to have work-related stress, these were healthcare, education, services, finance, the retail trade, transport and construction, and the public sector in general.
Despite the above, the dimension mentioned can be considered as a variable with short correlation on work engagement in the Mexican context. So, the variables may have a better relationship if are combined with other variables. Aktar & Pangil (2017) analyzed the mediating role of POS between the human resource management practices and work engagement, concluding that high POS strengthens that relationship. Mahon et al., (2014) indicated interaction between POS and emotional intelligence and their positive impact on work engagement. Results by Dai & Qin (2016) shows that POS impact is higher when is combined with organizational identification. Wang, Liu, Zou, Hao, & Wu (2017) and Shaheen & Krishnankutty (2018) has pointed out that psychological capital helps to mediate between POS and work engagement. Future research lines could address relationship between both variables using other factors to broaden the perspective of interaction in Latin American context.
The results obtained are a first intent to clarify this relationship in Mexican context, their results could have an interesting resource in the develop of the organizations if are used for them. The processes of retention, promotion and implementation of health programs could be better if understand the relevance of socio-affective support in the engagement.
Finally, it is important to recognize limitations of this study. The first one has been identified about representativeness of the sample, since most of the participants belonged to the educational and health services leaving a minority to the rest of the occupations of the tertiary sector. Socio-cultural aspects are another point to note, because they were not analyzed in this study. A third point to consider is that the aim did not allow the involvement of more variables that could enrich the interactions between the POS and work engagement. Future research could take in consideration biases about the sample and lack of some mediating variables mentioned above.

CONCLUSION
This paper shows a first approach about POS and work engagement relationship in Mexican and Latin American context. In short, this research shows a positive and significant relation between the POS and work engagement in workers. Particularly, dimension of satisfaction of socio-affective needs of POS shows a significative relationship with vigor and dedication. These results could be considered to structure organizational strategies to stimulate the human capital. Future research could deepen in the value sociocultural of organizational support, also they could find other relationships that explain better the POS and engagement interaction.

Conflict of interest:
The authors declare not conflict of interest in this research.