Impact of Career Planning, Employee Autonomy, and Manager Recognition on Employee Engagement

This study investigated the impact of career planning, employee autonomy, and manager recognition on employee engagement through the lens of the social exchange theory. A survey of 120 employees in US small and medium sized enterprises (SMEs) was conducted and a multiple regression model was created to answer the research questions seeking to know if career planning, employee autonomy, and manager recognition contributed to employee engagement and if so, to what extent. The results supported the theoretical model of social exchange as well as the hypothesized relationships. In other words, data confirmed the existence of a statistically significant relationship between the independent variables: career planning, employee autonomy, and manager recognition, and the dependent variable, employee engagement. Career planning was identified as a better contributor to engagement as compared to the other two predictors. Manager recognition, while contribut-ing less than career planning, was deemed a better contributor compared to employee autonomy. These findings offer implications for research on social exchange theory as an asset for the organization and suggest that in SMEs, managers need to have career planning discussions with their direct reports. These discussions set employees’ hopes of a promotion and increase their le-vels of engagement and involvement. Recognizing employees on a regular ba-sis for a job well-done increases their sense of achievement toward their hoped promotion, thus helping to keep them continuously engaged.


Introduction
Identifying the factors that make or keep employees engaged is important in improving their performances and increasing organizational success. For this reason, it is necessary and important to investigate the drivers of engagement in every type of organization and most specifically in small and medium sized enterprises (SMEs). As explained by Bovee, Thill and Mescon (2007), SMEs act as innovators, service providers, suppliers, and distributors to large companies and to the population. Antony, Vinodh, and Gijo (2017) supported this view by affirming that SMEs are a growing sector that contributes to the global economy and represents the backbone of developing countries' economies. SMEs are currently a fundamental part of the US society and economy, as they employ a large number of workers in total that have needs in order to be productive.
Employees are a scarce resource for SMEs because these businesses fully rely on the small pool of workers they employ. As explained by Wynarczyk, Watson, Storey, Short, and Keasey (2016), this situation is different in the case of large enterprises that have larger pools of workers, greater market powers, and enough financial abilities to increase these numbers. With their limited number of employees, SMEs need to increase employee engagement, which would increase productivity, reduce churn, increase profitability, and grow their businesses (Demerouti & Cropanzano, 2010;Gruman & Saks, 2011;Macey, Schneider, Barbera, & Young, 2009).
Many researchers have studied consequences of employee engagement including customer satisfaction (e.g. Coffman, 2000;Salanova, Agut, & Peiró, 2005); employee performance (e.g. Anitha, 2014;Gull, Khan, & Sheikh, 2020); employee retention (e.g. Shuck, Twyford, Reio, & Shuck, 2014); company profitability (e.g. Kazimoto, 2016); and many other consequences such as productivity, safety, organization commitment, etc. Other researchers have studied factors that contribute to employee engagement, including reward and recognition (Saks, 2006); learning opportunities and supervisor support (Sarti, 2014); and work environment (Demerouti, Bakker, Nachreiner, & Schaufeli, 2001). In their analysis of the determinants of employee engagement, Shantz, Alfes, Truss and Soane (2013) used a sample of 283 participants and measured engagement against five job attributes and task features namely: task significance, task variety, task identity, autonomy, and feedback. They concluded that task variety was the main driver of engagement and found feedback and task significance to be positively associated to engagement. While different studies have focused on the effect of various factors on employee engagement, the current literature does not show any study that focused on the contribution of career planning, employee autonomy, and manager recognition on employee engagement.
The current article seeks to fill the current gap in research by studying the relationship between the independent variables (IV) career planning, employee autonomy, and manager recognition, and the dependent variable (DV) employee engagement. Not only will this fill the current gap in research, but it will 2. Literature Review

Employee Engagement
Employee engagement is a confirmed strategy used to reduce employee churn, increase productivity, stay competitive, and secure organizational growth and survival (Jose & Mampilly, 2012;Raza et al., 2017). Recent literature suggests that many organizations are updating their strategic plans to include employee engagement. In addition, more and more researchers are seeking to understand antecedents and consequences of employee engagement. In a study of 550 executives, the Harvard Business Review (2013) found that 71 percent of respondents identified employee engagement as an important construct to achieve organizational success (Burnett & Lisk, 2019;Chhetri, 2017;Turner, 2020).
Employee engagement is an emotional commitment of an employee to the organization's mission, vision, values, goals, and purpose. To achieve this commitment, the employee is emotionally and physically present when performing his or her tasks or organizational functions. Kahn (1990) confirmed that employees are engaged when they act emotionally, physically, and cognitively in the performance of their jobs.
In this study, I define employee engagement as a two-way relationship between an organization and a worker in which the organization provides the worker with the environment and conditions to be successful through good leadership and management, and the worker provides the organization with a positive and self-motivated performance leading to the achievement of the organizational mission, vision, purpose, and goals. As defined, engagement suggests the application of the social exchange theory in which each party finds a benefit or reward leading to a continued relationship. One way for an organization to provide conditions to be successful is through goal setting and career planning.

Goal Setting
Goal setting is defined by the Cambridge Dictionary (2020) as "the process of deciding what you want to achieve or what you want someone else to achieve over a particular period." It is the identification and creation of a plan of action to be accomplished by someone or a group of people. Setting goals guides individuals in choosing the appropriate actions to execute in a timely manner. Goal setting has existed in humanity as far back as one can think. For example, any decision to do something in the future can be assimilated to setting a goal.
Goal setting by itself does not contribute to performance as much as when combined with feedback. In a nine-month longitudinal study of 209 engineering participants to identify the effects of goal setting and feedback in the work environment, Ivancevich and McMahon (1982) confirmed that feedback was superior to non-feedback, just as goal setting was superior to nongoal-setting. A combination of the two was deemed of greater effect than any single one of them. In the goal setting process, one important aspect for employees is the consideration for career planning. Employees expect that the appropriate accomplishment of their goals year after year would take them to their next career level.

Career Planning
In the current global and competitive business environment, organizations face challenges in retaining high-performing employees. To stay competitive, organizations include career planning in their strategic plans to enhance employees' growth and workforce stability (Donner & Wheeler, 2001). As explained by Hedge and Rineer (2017), "Careers comprise patterns of work experiences that evolve over time; people typically advance through each successive career stop along this evolutionary path" (p. 1). Careers are not static, and employees need to see the long-term plans of future opportunities offered to them. A survey of 12,000 employees by CEB (2015), a best practice and talent management company now acquired by the technology research and advisory company, Gartner, indicated that career opportunity was the main reason employees joined a different organization as they did not see opportunities to grow in their previous jobs. Career opportunity can be addressed in the workplace through career planning discussions between managers and their employees.
In this study, I view career planning as the process through which a person identifies his or her skills, interests, knowledge, abilities, and aspirations; identifies the jobs or positions that fit with the stated capabilities; and plans the steps and actions providing greater chances of obtaining such positions. The help of a mentor or contributions from the manager are necessary in supporting an employee in the identified career path. Career planning stems from the assumption that once a person starts working in an organization, he or she will be seeking to move up and around the organization functions if given the opportunities, or out if such opportunity does not exist. As explained by Hedge and Rineer (2017), career planning involves the discussion and analysis of the possible career paths of an individual based on his or her strengths, weaknesses, interests, and poten-F. M. Lartey Journal of Human Resource and Sustainability Studies tials. It aids individuals to identify future career options that provide satisfaction as well as challenges that keep them active and interested.
Organizations and their management teams play a key role in fostering their employees' career plans as they need to collaborate with the employees on career development activities, thus enabling them to continuously provide high quality performance in the ever-changing work environment (Arthur, Hall, & Lawrence, 1989;Donner & Wheeler, 2001;Hughes et al., 2005;Miller, 1982). A partnership between the manager and the employee is necessary for a proper career planning, and manager recognition helps the employee know that he or she is on the right path toward the completion of steps leading to the next career chapter.

Manager Recognition
In an article published in the Washington Post by Marks (2017), seventeen thousand workers were surveyed in the United States and 71 percent of them said they were actively looking for new jobs, the main reason being the lack of recognition in their current positions. Employee recognition has increasingly gained interest from researchers and organizations. Brun and Dugas (2008) published a qualitative article analyzing employee recognition from the perspective of human resources, seeking to explain the conceptual nuances and limitations of employee recognition. Long and Shield (2010) studied non-cash employee recognition comparing it to cash-based rewards in Canadian and Australian companies and concluded that while popular, non-cash rewards did not substitute cash-based performance programs.
Recognition is the act of offering a reward in relation to a performance such as the accomplishment of a task or project, or the achievement of a goal. It can be monetary in the case of cash awards, or non-monetary in situations of verbal or written praises or appreciations. As explained by Brun and Dugas (2008) and confirmed by Feys, Anseel, and Wille (2013), managers have consistently used recognition programs in the workplace as a motivational instrument. In most cases, manager recognition is in the form of a verbal or written non-monetary appreciation. Many scholars are recommending the increased use of non-monetary incentives by managers in order to enhance employee motivation and drive productivity and satisfaction (Long & Shields, 2010;Montani, Boudrias, & Pigeon, 2020).
An article published on Gallup by Mann and Dvorak (2016) explains that "Workplace recognition motivates, provides a sense of accomplishment, and makes employees feel valued for their work. Recognition not only boosts individual employee engagement, but it has also been found to increase productivity and loyalty to the company, leading to higher retention" (p. 1). Manager recognition has indeed been known to increase employees' well-being, willingness to learn, job satisfaction, and intrinsic motivation (Appelbaum & Kamal, 2000;Merino & Privado, 2015).
In a study seeking to understand the impact of manager recognition and co-F. M. Lartey Journal of Human Resource and Sustainability Studies worker recognition on employee involvement in the workplace, Montani, Boudrias, and Pigeon (2020) surveyed 249 employees and 151 managers in nine Canadian companies, resulting in 130 usable dyads. Their findings confirmed that manager recognition leads to meaningfulness that contributes to employee behavioral involvement in the workplace. Manager recognition is indeed a motivator for employees, mostly in coordination with a career planning discussion. It has the psychological effect of making the employees feel that they are on track in the accomplishment of their goals, which could potentially unlock their next career objective.

Employee Autonomy
Employees increasingly express a feeling of stress from their workplace due to excessively controlling managers who apply a management style known as micro-management. Chambers (2004) defines micro-management as a behavior exerted by someone who specifies and controls the details of tasks executed by his or her employees, telling them what to do, when, and how. White Jr. (2010) added that this management style prevents subordinates from feeling any type of autonomy, hence the stress created.
In contrast to micromanagement, employee autonomy is a situation known to reduce stress, improve morale, and contribute to well-being (Gagne & Bhave, 2011). It is presented by Mankins and Garton (2017) as "the single most important element for creating engagement in a company" (p. 1). Employee autonomy is the ability for the employee to decide on the place, the time, and the way to complete their tasks, thus having a say on the when, where, and how. This definition is shared by various researchers such as Bailyn (1993), Chambers (2004), Clark (2001), Gagne and Bhave (2011), and Thompson and Prottas (2005).
The concept of employee autonomy dates back from early management theorists. It is represented in the four principles of Scientific Management as described by Taylor (1911) through the third principle with the notion that "about three-fourths of the time we will work according to whatever method suits us best" (Shafritz & Hyde, 2012: p. 38). This is an early suggestion of autonomy at work, providing flexibility for employees to make the right work-related decisions.
Employee autonomy has constituted the topic of many research studies. For example, Evans and Fisher (1992) examined workplace practices related to employees' autonomy experience and identified a consistent influence on employee performance. In a study of the relationship among family support, job autonomy, perceived control and employee well-being, Thompson and Prottas (2005) analyzed data from 3504 records in the 2002 National Study of the Changing Workforce in the U.S. Using a hierarchical regression model, their findings showed that job autonomy was associated to all hypothesized outcomes, including job satisfaction, family satisfaction, life satisfaction, stress and well-being, and turnover intentions, among others. As such, while increasing satisfaction F. M. Lartey Journal of Human Resource and Sustainability Studies and well-being, autonomy also improves work-life balance, an enviable situation for workers and organizations. In 1958, Homans (1958 published an essay titled "Social Behavior as Exchange".

Theoretical Perspective: Social Exchange Theory
This was the inception of the Social Exchange Theory (SET) which was further developed by Gouldner (1960), Homans (1961), Blau (1964), andEmerson (1976). SET is viewed by various researchers as one of the most influential theories for understanding behavior in the workplace (Cropanzano and Mitchell, 2005;Tate, Lartey, and Randall, 2019). Homans (1961) explained that social exchange is the exchange of tangible or intangible items, services, or activities between at least two entities which could include people and groups.
Social Exchange Theory (SET) is a cost-benefit model explaining societal behavior as a set of interactions focused on benefits (rewards) and costs (punishments). In that regard, human interactions are seen as series of actions based on perceived benefits and costs. SET suggests that interactions resulting in approvals (benefits, rewards) are more likely to be repeated than those resulting in disapprovals (punishments, costs). In this view, approvals or benefits are things viewed as positive, resulting from the interaction or the relationship. Disapprovals or costs are things viewed as negative from the interaction. Examples of reward or benefit include financial incentives, social recognition, joy, fun, friendship, acknowledgement, workplace promotion, or success in an exam. Similarly, costs or punishments are things perceived negatively and can also come in many forms including disagreements, reprimands, angriness, wasted time, failure, etc.
The social exchange theory model for predicting behavior is provided in formula 1 below:

Interaction Behavior Perceived Rewards Benefits
Perceived Punishments Costs (1) This model suggests that an interaction is likely to be repeated if the perceived rewards or benefits exceed the perceived costs or punishments. In other words, people chose to stay in a relationship with other people or organizations if the perceived benefits of the relationship outweigh the perceived costs.
In applying the principles of SET to the relationship between an employee and an organization, it can be inferred that an employee will stay in an organization and repeat a positive contribution if he or she perceives that there are more benefits than costs in doing so. This was confirmed in a study conducted in Pakistan by Raza, Ansari, Humayon, Hussain, and Aziz (2017)

Research Question and Hypotheses
Several studies have confirmed that employee engagement has a positive effect on performance (Anitha, 2014;Mone and London, 2018;Rich, LePine, and Crawford, 2017). Other studies revealed that personal engagement leads to improved employee performance (Demerouti et al., 2001;Gruman & Saks, 2011).
Career planning discussion, employee autonomy and manager recognition being extrinsic to the employee and engagement being intrinsic, this study hypothesized that career planning discussions with manager, employee autonomy, and manager recognition increase employee engagement which leads to higher performance, thus the following research questions: RQ1: Does career planning discussions, employee autonomy in accomplishing tasks, and manager recognition contribute to employee engagement?
RQ2: Is there a significant difference in the contribution, if any, of career planning, employee autonomy, and manager recognition in the prediction of employee engagement?
The hypothesis related to these research questions were as follows: H 0 1: Planning discussions, work autonomy, and manager recognition do not contribute to the increase of employee engagement.
H A 1: Planning discussions, work autonomy, and manager recognition contribute to increasing employee engagement.
H 0 2: There is no significant difference in the contribution of career planning, employee autonomy, and manager recognition in the prediction of employee engagement.
H A 2: There is a significant difference in the contribution of career planning, employee autonomy, and manager recognition in the prediction of employee engagement.

Conceptual Framework
In a study seeking to identify drivers of engagement in the workplace, David and Panday (2013) determined that work environment, opportunities to grow, and job enrichment led to employee engagement. Opportunity to grow includes career planning as well as personal development, and work environment encompasses the employees' autonomy to complete assigned tasks.
In a two-month field experiment measuring the effects of goal setting and feedback on productivity in a manufacturing facility, Stansfield and Longenecker (2006) conducted a series of field experiments and confirmed that goal-setting and timely feedback resulted in improved employee performance and higher efficiency. Goal setting was considered by Latham and Locke (1979) as a straightforward technique to drive employee motivation. In this view, manager recognition is a positive feedback provided to the employee for a job well done.

F. M. Lartey Journal of Human Resource and Sustainability Studies
Additionally, various studies such as those of Anitha (2014), Gull, Khan, and Sheikh (2020), Mone and London (2018), and Rich, LePine, and Crawford (2017) have confirmed the existence of a statistically significant relationship between employee engagement and performance. Based on all the empirical evidence, the current article acknowledges the positive effect of engagement on employee performance and hypothesizes that career planning discussions, employee work autonomy, and manager recognition positively contribute to employee engagement. This theoretical framework is represented on Figure 1.

Research Approach
In analyzing the impact of Career Planning, Employee Autonomy, and Manager Feedback on employee engagement, this study implemented a quantitative non-experimental correlational design approach. It used a self-administered survey questionnaire filled online by randomly selected participants from the online survey firm QuestionPro. The survey questionnaire included two validated instruments to measure the main constructs identified in the conceptual framework.

Measurement Instruments
Employee engagement was measured using the Utrecht Work Engagement Scale (UWES-9) created by Schaufeli, Bakker, and Salanova (2006). This instrument has been validated across studies in different countries as explained by Tate, Lartey, and Randall (2019) and is considered one of the most used employee engagement instruments (Mone & London, 2018). UWES-9 is a 9-item scale measuring employee engagement organized in three dimensions or subscales, namely vigor, dedication, and absorption. These dimensions are measured from their subtending variables (attitudes or behaviors) using a 5-point Likert scale ranging from never coded as 1, to always, coded 5, with the mid-point 3 worded as sometimes. Figure 1. Theoretical Framework of the study suggesting that career planning discussions, employee work autonomy, and manager recognition contribute to employee engagement which leads to increased performance. Journal of Human Resource and Sustainability Studies Career planning, employee autonomy, and manager recognition were measured using their related items from the Path Model Indirect Predictors of the performance and engagement model developed by Mone and London (2018).
These items rate the assertions: "I had a career-planning discussion with my manager" for career planning discussion, "I have control over the quality of my work" for employee autonomy, and "I am satisfied with the recognition I receive from my manager" for manager recognition.

Population and Sample Size
In conducting this study, data were collected using an online survey question-

Data Analysis
The data analysis proceeded first with a post-hoc power analysis to confirm if the expected power was obtained with the final sample. That was followed by an analysis of the reliability of the survey questionnaire using the Cronbach Alpha test (Cronbach, 1951), and the analysis of the assumptions of multiple regression. Finally, a standard multiple regression model was created to test the hypothesis, and the interpretation of the results concluded the data analysis section.

Post-Hoc Power Analysis
A post-hoc analysis was conducted to validate the adequacy of the sample size used in this study by calculating the achieved power based on the study's sample. Power analysis was computed using the statistical power analysis package GPower 3.1.7 suggested by Faul, Erdfelder, Lang, and Buchner (2007). The base-Journal of Human Resource and Sustainability Studies line of the power calculation included the error probability (α = 0.05), the sample size (s = 120), the effect size (f 2 = 0.15), and the number of independent variables or predictors (three). The effect size was selected based on Cohen's (1977) recommendation suggesting three possible effect sizes namely small (f 2 = 0.02), medium (f 2 = 0.15), and large (f 2 = 0.35). Additional selections were made to fine-tune the results of the power analysis, including the test family (F tests); the statistical test (Linear multiple regression: Fixed model, R 2 increase); and the type of analysis (Post hoc: Compute achieved power-give α, sample size, and effect size).
The results of the post-hoc analysis showed a statistical power of 0.95 for detecting medium effect sizes. These results were identical when changing the statistical test to "Linear multiple regression: Fixed model, R 2 deviation from zero." As such, the achieved power of 0.95 confirmed that the sample size was adequate for answering the research question. This conclusion is supported by Cohen (1992) who suggests that adequate power for answering research questions is achieved for values greater than 0.80. As a result, the achieved power of 0.95 was deemed appropriate to proceed with the data analysis using the current sample size of 120 participants but prior to data analysis, the reliability and validity of the survey instrument needed to be established.

Reliability and Validity of the Survey Instrument
As explained in paragraph 6.2., the validity of the instrument used in this study has been confirmed in prior studies. The reliability of the survey instrument was assessed using the Cronbach Alpha statistic. The Cronbach alpha test was computed against the collected data to analyze the internal consistency and reliability of the survey instrument. That was achieved with SPSS using the function Analyze/Scale/Reliability Analysis. Twelve items were added to the items list namely the nine items of the UWES-9 scale and the three behavior variables representing the independent variables (CAREERPLAN, AUTONOMY, and RECOGNITION). The results of the Cronbach alpha calculation on 120 records and 12 variables (9 constituting the outcome and 3 for the predictors) showed an alpha coefficient of 0.94. The rule of thumb implemented by most researchers is to have a minimum coefficient of 0.70 to consider the level of internal self-consistency of an instrument suitable for the study (Taber, 2018). As such, the coefficient alpha of 0.94 suggested a high internal consistency and reliability of the survey instrument, thus allowing the study to proceed with the data analysis without any need for variable reduction.

Assumption of Multiple Regression
To analyze the impact of career planning, manager feedback, and autonomy on employee engagement, this study used three independent variables (CAREERPLAN, AUTONOMY, and RECOGNITION) and one dependent variable (ENGA-GEMENT). While the independent variables were individual behaviors or attitudinal variables, engagement was a latent variable corresponding to the sum of Journal of Human Resource and Sustainability Studies its nine underlying behavior variables as represented in the UWES-9 instrument. All variables were of scale measurement level and suitable for the creation of a multiple regression model. Prior to the model creation, the assumptions of multiple regression needed to be confirmed. As presented by Lartey (2020), these assumptions include: 1) the ratio of cases to independent variables; 2) the absence of outliers among the independent and the dependent variables (univariate and multivariate outliers); 3) normality, linearity, and homoscedasticity; 4) the absence of multicollinearity and singularity; and 5) the independence of errors in the solution.

Ratio of Cases to Independent Variables
According to Tabachnick and Fidell (2013), the minimum number of cases required is n ≥ 50 + 8 m for testing multiple correlation, or n ≥ 104 + m for testing individual variables, assuming α = 0.05 and β = 0.20, suggesting a medium-size relation between independent variables and dependent variables. In these formulae, n is the total number of cases and m is the number of independent variables. Other researchers suggest less stringent recommendations. For example, Khamis and Kepler (2010) suggest using n ≥ 20 + 5 m when dealing with validations. Based on these three recommendations and considering the information for this study where m = 3, the minimum suggested number of participants is respectively n ≥ 74 (50 + 8 × 3); n ≥ 107 (104 + 3); and n ≥ 35 (20 + 5 × 3). With 120 participants and 3 independent variables, this study meets the minimum requirements and the assumption of cases to independent variables was met.

Univariate Outliers and Missing Values
There were no missing values in the 120 responses retained for this study. To identify possible univariate outliers, the z-scores of all variables were computed on SPSS using the function Analyze/Descriptive Statistics/Descriptives and selecting Save standardized values as variables. A subsequent descriptive statistic of the newly created variables was done selecting only the minimum and maximum dispersions from the options. The resulting information presented on Table 1 showed that none of the z-scores was outside the range from −3.29 to +3.29 as suggested by Tabachnick and Fidell (2013). As such, in addition to not having any missing information, the data did not include any univariate outlier.

Normality, Linearity, and Homoscedasticity
The assumption of normality, linearity, and homoscedasticity was conducted through the analysis of residuals. This is supported by Tabachnick and Fidell (2013) who explain that "Routine pre-analysis screening procedures of Chapter 4 may be used to assess normality, linearity, and homoscedasticity. Regression programs, however, also offer an assessment of the three assumptions simultaneously through analysis of residuals produced by the programs" (p. 125). To In addition, the P-P plot of the standardized residuals and the regression standardized residual histogram showed a normal distribution confirming that standardized residuals were normally distributed. Notwithstanding this, the assumption of normality was also confirmed by analyzing the skewness and kurtosis of all variables. Using the SPSS functions Analyze/Descriptive Statistics/Descriptives and selecting Kurtosis and Skewness in the options, the resulting output on Table 2 shows the related skewness and kurtosis values. All values of skewness and kurtosis are between −1 and +1, suggesting that all variables are reasonably normally distributed.

Independence of Errors
The Durbin-Watson test statistic for detecting the presence of autocorrelation in the residuals had a value of 2.02. As a reference, values of the Durbin-Watson test are always between 0 and 4. Values less than 2 suggest positive autocorrelation while those greater than 2 suggest negative correlation. A value of 2 means there is no autocorrelation. As explained by Field (2013), values below 1 or above 3 are causes for concern. The Durbin-Watson test statistic of 2.02 confirms that there was no serial correlation of the residuals from one observation to another, confirming the assumption of independence of error.

Multicollinearity and Singularity
Collinearity diagnostics were analyzed through the variance inflation factor (VIF) and the tolerance. Each IV or DV served in turn as DV while the other variables served as IV and the VIF and tolerance were computed as suggested by Tabachnick and Fidell (2013) and Field (2013). The results are summarized on Table 3 for the VIFs and on Table 4 for the tolerances. A review of Table 3 shows that all VIF values are well below the critical limit of 10 considered risky for collinearity.
Similarly, Table 4 confirms that the tolerance statistics computed as 1 -SMC (squared multiple correlation) are all above 0.2 as suggested by Field. Finally,  analyzing collinearity using the SPSS function Analyze/Correlate/Bivariate revealed no correlation value among IVs above 0.6, with 0.7 being the limit of concern (Field, 2013). Based on what precedes, multicollinearity and singularity did not create any cause for concern and the assumption suggesting the absence of multicollinearity and singularity was achieved.

Results
The results of the evaluation of assumptions of multiple regression led to the suppression of ten cases identified as multivariate outliers based on their Mahalanobis distances with the use of the criterion p < 0.05. As such, the sample size for the analysis went from 120 to N = 110 cases. The ratio of cases to indepen-  Table 5, with R 2 = 0.53 as shown on the model summary on Table 6. The analysis of variance (ANOVA) tests if the R-Square is significantly greater than 0. The p-value shown on Table 5 being less than 0.001 suggests that the R-Square of the solution is significantly greater than zero. As such, the predictors can account for an acceptable amount of variance in the employee engagement score.    The standardized coefficients Beta as shown on Table 7 indicate the contribution of each independent (IV) variable in the determination of the dependent variable. To that effect, Table 7 shows that of all IV, the most significant predictor of engagement is career planning (Beta = 0.45). This is followed by RECOGNITION (Beta = 0.27), then AUTONOMY (Beta = 0.17). These findings helped answer the second research question: "Is there a significant difference in the contribution, if any, of career planning, employee autonomy, and manager recognition in the prediction of employee engagement". The null hypothesis H 0 2 of non-existence of a difference among independent variables was rejected and the alternate hypothesis H A 2 was retained. Hence, this study confirmed that there was a significant difference in the contribution of career planning, employee autonomy, and manager recognition in the prediction of employee engagement, with career planning being the top contributor of engagement.

Discussions and Practical Implications
The purpose of this social exchange-based study was to investigate the impact of career planning, employee autonomy, and manager recognition on employee engagement, which leads to performance increase and contributes to the achievement of organizational goals. To that effect, 120 employees in small and medium enterprises in the United States were randomly selected for an online ing of achievement of this expected reward is enforced by the employee's autonomy. In other words, the employee feels trusted to make decisions and choices in the accomplishment of his or her tasks. The "carrot" or anticipation of a reward is the confirmation of being on the right path, a recognition by the employee's manager. As presented, this study served as a platform to investigate and validate some conditions that can motivate employees and keep them engaged as they feel confident about a possible reward. The findings of this study have meaningful and important implications for organizations and their leadership. One implication suggests that organizations can create a simple 3-step plan for keeping their employees engaged. First, the employees need to know that they have an opportunity to progress within the company. Such progression could be within the employee's current job, toward supervisory and management roles, or moving to a completely different department or branch of the organization. To address this, it is a good practice to create progression plans for every existing position. In addition to the perception of future progression, employees need to be trusted in their current role. Such trust could manifest itself by the sense of autonomy provided by supervisors to employees in the accomplishment of their tasks. In other words, supervisors should avoid micro-managing their employees as much as possible. Finally, recognizing employees is a way of confirming that they are on the right path toward achieving the expected promotion or recommendation for a future position. Together, these three elements create intrinsic and extrinsic forces that motivate employees, thus enhancing their engagement and performance.
From an academia standpoint, this work contributed to knowledge in the field of study by filling a gap in existing literature. Indeed, no previous study looking at the contribution of the three items, career planning, employee autonomy, and manager recognition, to employee engagement was found in the literature. Hence, the current study provided empirical evidence confirming such relationship. In addition, the definition of engagement as presented here is different from those previously provided by some researchers. As explained earlier, this study defined engagement not just in relation to the employee, but also including the organization in which the employee works. It defined engagement as "a two-way relationship between an organization and a worker, in which the organization provides the worker with the environment and conditions to be successful through good leadership and management, and the worker provides the organization with a positive and self-motivated performance leading to the achievement of the organizational mission, vision, purpose, and goals." Despite the noteworthy findings and contributions provided by this study, there were limitations worth discussing.

Limitations and Future Prospects
Notwithstanding the fact that this study made significant contributions to both research and practice, it still has some limitations worth presenting. First, the study used self-administered online questionnaires allowing the participants to F. M. Lartey Journal of Human Resource and Sustainability Studies provide answers without explaining the reasons for their choices. In such setting, there could be data bias as some participants could systematically fill their questionnaires without utterly understanding the question. While some controls were implemented to prevent such situation, some data could have passed through and made it into the analysis.
Another shortfall of the study is the limitation of the sample to small and medium sized enterprises in the United States. For that reason, the findings of the study should not be generalized to large enterprises or to other countries. Further research is required prior to such generalization and this would constitute a possible topic for future studies.

Conclusion
The premise of this research was to study the impact of career planning, employee autonomy, and manager reward on employee engagement. The research was grounded on employee engagement from the perspective of the social exchange theory. The first research question asked if career planning discussions, employee autonomy in accomplishing tasks, and manager recognition contributed to employee engagement. The second research question asked if there was a significant difference in the contribution, if any, of career planning, employee autonomy, and manager recognition in the prediction of employee engagement.
A standard multiple regression model was created to answer the research questions. Results of the analysis confirmed the existence of a statistically significant relationship between the independent variables in determining employee engagement among workers in small and medium sized enterprises. The findings also confirmed the existence of differences in the predictors' contributions.
To that effect, career planning was identified as the best contributor to employee engagement as compared to employee autonomy and manager recognition. The latter, manager recognition, had a higher contribution to engagement compared to employee autonomy.
This study contributed to academia by filling the gap in the existing literature related to predictors of engagement. It provided empirical evidence of the extent to which career planning discussions have the propensity of influencing employee engagement. It also showed that career planning discussions, employee autonomy, and manager recognition explained as much as 53 percent of employee engagement. These findings also have considerable implications for practitioners and organizations, suggesting that organizations should encourage and mandate career planning discussions between supervisors and their direct reports. Providing a vision of the possible future is like giving hope to employees, which allows them to increase their engagement and performance in the pursuit of their dreams of moving to the next career level.

Conflicts of Interest
The author declares no conflicts of interest regarding the publication of this paper.