The Influence of Communication, Team Work, and Organizational Commitment on Improving Employee Performance at PT Seroja

The purpose of this research is to determine the relationship between communication, team work, and organizational commitment to the performance of employees at PT Seroja Lukindo Lestari Surabaya. This research is using quantitative method. The population and sample based on questionnaires to employees of PT Seroja Lukindo Lestari Surabaya of 67 respondents. The method of data collection uses interviews, observations and questionnaires. Analysis of the data used validity test, reliability test, classic assumption test and multiple linear analysis test. The results of the research showed Communication (X1), Team Work (X2), and Organizational Commitment (X3) had a significant relationship to employee performance (Y) which have a significant value <0.05.


Human Resources Management
human resource management (HRM) is a science that studies how to empower employees in a company, make work, work groups, develop employees who have the ability, identify an approach to develop employee performance and provide benefits to them for their work. (Muhammad, 2011: 1) Communication is a basic human activity. By communicating, humans can interact with each other both in daily life in the household, at work, in the marketplace, in society or wherever humans are. No human will not be involved in communication. (Dewi, 2007: 152) defining team work (teamwork) is a form of work in a group that must be organized and managed properly. The team consists of people who have different skills and are coordinated to work with the leadership. There is strong interdependence with each other to achieve a goal or complete a task.

Organizational Commitment
Organizational commitment is a situation where an employee sided with a particular organization and its goals and desires to keep membership in the organization. So high job involvement means taking sides with a particular individual's work, while high organizational commitment means taking sides with the organization that recruits the individual (Robbins, 2008). (Hasibuan, 2003: 93) is a result of work achieved by someone in carrying out the tasks assigned to him based on skills, experience, sincerity and time. In other words, performance is the result of work achieved by someone in carrying out the tasks assigned to him according to the criteria set and according to (Sentngono, 2014: 179) performance is the work that can be achieved by a person or group of people in an organization, in accordance with their authority and responsibilities of each in order to achieve organizational goals.

Previous Research
(Amanda Carolina Lakoy, 2015) The results of the study showed that communication, group collaboration and creativity simultaneously had a significant effect on employee performance at Aryaduta Manado Hotel. This shows that the management of Aryaduta Manado Hotel must pay attention to the factors of communication and group collaboration to encourage higher employee performance. (Mustafa Zincirkiran, Abdurrahim Emhan and Mehmet Fatih Yasar,2015) Results: Demonstrate that team work has affected 23.5% of employee performance while the remaining 76.5 other factors that affect employee performance were not examined in this study. (Salim Musabah Bakhit Al Zefeiti dan Noor Azmi Mohammad ,2017) The empirical results indicate that all organizational commitment subscales (affective, normative, and continuance) have a significant impact on work performance dimensions, contextual and task performance.

Type of Research
The approach used in this study is a quantitative approach. According to (Sugiyono, 2016: 35-36) quantitative methods can be interpreted as research methods based on the philosophy of positivism, used to examine certain populations or samples, data collection using research instruments, data analysis quantitative statistical nature in order to test the predetermined hypothesis.

Place and Time of Research
This research was conducted at PT. Seroja Lukindo Lestari Surabaya address Jl. Kalianak 55 A1 Surabaya. The time of the study is from September 2018 -January 2019.

Population and Sample
The population in this study were all employees of PT. Seroja Lukindo Lestari Surabaya with a population of 200 employees. The purpose of the population is held in order to determine the size of the sample members taken from the sample members and limit the applicability of the generalization area (Sugiyono in Ruslan, 2010: 133) . Samples are part of the number and characteristics of the population. This study uses the Slovin formula which is used to calculate the sample size of a known population, based on the results of a sample of 67 responses.

Data Collection Method
This research uses a type of primary data, namely data obtained directly from the original source. Primary data is specifically collected to answer research questions. Primary data is usually obtained from field surveys that use all ordinal data collection methods (Sugiyono, 2010: 137). This data was obtained from the results of filling out a questionnaire regarding Communication, Team Work, and Organizational Commitment towards Employee Performance which was filled by employees of PT. Seroja Lukindo Lestari Surabaya.

Operational Definition of Research Variable
X1: Communication. Communication is an interpersonal interaction that uses a system of linguistic symbols, such as a system of verbal symbols (words) and nonverbal by PT. Seroja Lukindo Lestari Surabaya. X2: Team Work. Team Work is the synergy of the strength of several people in achieving a common goal for PT. Seroja Lukindo Lestari Surabaya. X3: Organizational Commitment. Organizational Commitment is an attitude that reflects employee loyalty to PT. Seroja Lukindo Lestari Surabaya. Y: Employee performance. Employee Performance is the result of work achieved by a person or group of people in PT. Seroja Lukindo Lestari Surabaya.

Data Analysis Method 1. Validity and Reliability Test
Validity test is used to measure the validity of a questionnaire (Imam Ghozali, 2013: 52). While reliability testing is used as a tool to measure a questionnaire which is an indicator of a variable or construct. A questionnaire is said to be reliable if someone's answer to the question is consistent or stable over time

Reliability and Validity
Based on research shows that the cronbanch alpha value is 0.894 which means that it is above the acceptance limit of 0.6 therefore, the research instrument for the relationship between variables shows good consistency and acceptable data. Based on the research value of the correlation index for the relationship between the independent variables (Communication, Team Work and Organizational Commitment) and the dependent variable (Employee Performance) greater than 0.3 and below the significant level of 5% (0.05). Correlation (1) between communication (0.727), team work (0.819) and organizational commitment (0.679) with employee performance (1.000) shows a positive relationship. Therefore, the data is considered valid.   The value of R Square is 0.450 which means that all independent variables: Communication, Team Work, Organizational Commitment has a positive relationship with Employee Performance.

Result of R Square
(2)

Test of Classical Assumption 1. Multicollinearity Result Tabel 3. Multicollinearity Result
Source: SPSS Output, 2019 Tolerance of Communication is 0.886, Team Work is 0.762, and Organizational Commitment is 0.768 which means that the tolerance value of each variable is more than 0.1. The VIF value of Communication is 1.128 Team Work is 1.313 Organizational Commitment is 1.272 it means that the value of the two variables is less than 10. Because the tolerance value is more than 0.1 and VIF value is less than 10 studies are free from multicollinearity.

Figure 1 Heteroscedasticity Result
The pattern of dots spreads and does not make a clear pattern. The points spread above and below 0 (zero) at Y and that proves that the model is free from heteroscedasticity. In the table the results of testing the normal distribution with the Kolmogorov Smimov method to strengthen the testing with graphs obtained a significance value of 0.436> 0.05, so that the regression model is normally distributed.

Hypothesis Testing 1. F-Test
The F-test is used to determine all effects of all independent variables on the dependent variable. This test is done by comparing the value of F count with the value of F table at α = 0.05.

Tabel 4 Hasil Uji-F
The F-test is used to determine all effects of all independent variables on the dependent variable. This test is done by comparing the value of F Count with F Table value at α = 0.05. The overall effect of Communication (X1), Team Work (X2), and Organizational Commitment (X3) on employee performance (Y) is very significant.

Discussion
The fourth hypothesis states that Communication, Team Work, and Organizational Commitment have a significant effect on performance. This is evident from the results of the questionnaire, the respondents stated that the company had provided give Communication, Team Work and Organizational Commitment to them.