The Effect of Work Discipline on Work Productivity of Construction Employees

: Progress and developments in the world of construction have greatly spurred the growth and development of the construction services business, especially in Indonesia. When carrying out activities, companies need human resources to achieve company goals, namely work productivity. Work productivity is a measure of input and output as well as the role of labor in the company. The factor that affect work productivity is work discipline. Discipline is an attempt to comply with the applicable regulations in the company. Employees must pay attention to the part of work discipline, especially employee absenteeism. Because work discipline greatly affects employee productivity factors. That’s why this research was conducted to determine the effect of work discipline on work productivity with case study in PT. PP (Persero) TBK. EPC Division RDMP RU V Balikpapan Project. The method used in this research uses multiple linear regression analysis with SPSS 23.0, 21 indicators that affect project work productivity of PT. PP includes employee compliance with all company regulations, and at work can improve performance. This is supported by the t-count work discipline value of 2.155 and a significant value of less than 0.05 with values of 0.044.


INTRODUCTION
Progress and developments in the world of construction, greatly spur the growth and development of the construction services business, especially in Indonesia. Every company that is built has the hope of having rapid development. When carrying out its activities, companies really need human resources that support efforts and the goals set by the company (Mathis&Jackson, 2016). Productivity is defined as the relationship between actual or physical results (goods) or services with the actual input. Work productivity is the level of the workforce's ability to provide a product, and work productivity has a relationship between the output (job output) and the time it takes the workforce to produce the product. Companies must be able to increase the productivity of their human resources (Hasibuan, 2011). Occupational health and safety (OHS) is an activity that guarantees safe working conditions to avoid physical and mental disabilities, direct and control the work environment. safe working conditions to avoid physical and mental disability, direct, controlling employees in carrying out their duties and providing assistance in accordance with applicable regulations.
This becomes very important for human resource managers to increase worker productivity is employee discipline (Sedarmayanti, 2014). PT. PP (Persero) TBK. EPC Division RDMP RU V Balikpapan project has three scopes of work, namely bored pile, cooling water system, and jetty. In this study, the researcher used multiple linear regression data analysis methods with SPSS 23.0 and used a Likert scale. This study uses interview techniques and questionnaires. Subjects in this study are project stakeholders PT. PP (Persero) Tbk. EPC Division Several preliminary studies.

Type of Research
The method used in this research starts with a determination of OHS management topics, problem identification, literature study, data collection techniques, preliminary survey, questionnaire design, questionnaire distribution, and conclusions (Sugiyono, 2017). And the help of SPSS 23.0 (Sugiyono dan Susanto, 2015;Suliyanto, 2011). Based on the data obtained, it is known that the population is 161 people.

Sampling Technique
The sampling technique used by the researcher is the Non-Probability sampling technique. The sample in this research amounted to 22 respondents. There are two research variables, the dependent and the independent variables. Research variables and question indicators were obtained from previous research. The data analysis used is multiple linear regression and hypothesis testing.

Hypothesis
In this study, the researchers proposed the following hypothesis: H1 : It is suspected that work discipline has an effect on the work productivity of PT. PP (Persero) TBK. EPC Division H2 : It is suspected that occupational safety and health (OSH) has an effect on the work productivity of PT. PP (Persero) TBK. EPC Division H3 : It is suspected that work discipline and occupational safety and health (OSH) have an effect on the work productivity of PT. PP (Persero) TBK. EPC Division.

Data Analysis
Analysis data used in this research is multiple linear regression. And there are 4 parts, the first is the data quality test, the second is the classic assumption test, the third multiple linear regression test, and the last hypothesis test (Ghozali, 2013)

Data Quality Test
This section consists of 2 tests, namely validity and reliability.
Data quality tests have two tests, Validity and reliability. The validity test is used to measure the validity or validity of a questionnaire. A questionnaire is said to be valid if the questions on the questionnaire are able to reveal something that will be measured by the questionnaire. Reliability is a tool to measure a questionnaire which is an indicator of the variable. It was found that of the 3 variables each had 6, 8, and 9 question indicators. The results obtained from the validity test on the OSH variable are valid, the work discipline variable on DK1 indicators is invalid so it will be used in the next analysis stage for as many as 7 indicators, and for the work productivity, variable PK2 indicators is invalid so that it will be used in analysis stage the as many 8 indicators. The r-count value obtained must be > r-table and the r-table value of 0.042. and for the reliability test, reliable results were obtained because the value of Cronbach's alpha count was > 0.60.

Classic Assumption Test
In the classical assumptions test, there are several tests that must be carried out, namely Normality Test, Multicollinearity Test, and Heteroscedasticity Test (Riduwan and Sunarto, 2017   The significance value or sig is 0.077 and 0.419. The value of sig > 0.05 so it can be concluded that there is no heteroscedasticity problem.

Multiple Linear Regression Analysis Test
This study uses the data analysis method of multiple linear regression analysis, used because there is more than one independent variable in the study.

Hypothesis Test
This section consists of two tests, the first is a partial test (t) and the last is a simultaneous test (f). The t-statistical test aims to show how the partial effect of the independent or independent variables on the dependent variable, namely by comparing the t-table and t-count [10]. The F statistical test aims to show whether all variables or independent variables (occupational safety and health and work discipline) are included in the model. (occupational safety and health and work discipline) included in the model have a joint influence on the dependent or dependent variable (employee productivity). Table 6. Partial Test (t) The t-table value is 2.093 Partial test analysis results (t): (H1) sig value is 0.044<0.05 and the t-count value is 2.155>2.093 so H1 is accepted. (H2) sig value is 0.018<0.05 and the t-count value is 2.590>2.093 so H2 is accepted.

CONCLUSION
The conclusion of the study of the effect of occupational safety and health (OSH) and work discipline on the work productivity of construction employees of PT PP. (Persero) Tbk. EPC Division RDMP RU V Balikpapan Project with the method of multiple linear regression analysis and using the help of SPSS23 software. multiple linear regression analysis and using the help of SPSS23 software is as follows: 1) In this study, it was found that work discipline had an effect on the work productivity of construction employees at PT. PP (Persero) Tbk. EPC Division.
2) Found that occupational safety and health (OSH) had an effect on the work productivity of the construction PT. PP (Persero) Tbk. EPC Division 3) Found that occupational safety and health (OSH) and work discipline have a joint or simultaneous influence on the work productivity of the construction PT. PP (Persero) Tbk. EPC Division.

SUGGESTIONS
Suggestions for project parties and further researchers based on the results of the research that has been done are as follows: 1.It is recommended that companies improve occupational safety and health programs (OSH) in order to ensure employee welfare and avoid the risk of work accidents during construction projects. OSH can support the increase in employee productivity, which in turn will have a positive impact on the company. 2.It is recommended that companies improve work discipline for employees. Prioritize enforcing company regulations and consequences for employees who violate company regulations. Work discipline must be considered in the company and carried out by all workers to increase employee work productivity, so that company targets will be achieved. 3.For researchers who will conduct research in the same place in order to further develop the results of their research, by raising objects or research variables that are different from this research. Can add other indicators so that they have answers with different variants, and can add the number of respondents when conducting research. 4.For researchers who will conduct research with similar objects or variables, it is advisable to add other variables that are likely to affect employee productivity, such as employee work motivation, skills, income levels, work environment and social security.