Kaizen and Productivity: The Mediating Effect of the Customer-supplier Relationship Using Smart-PLS

Öz

As the global market has shifted rapidly in recent years, the debate over whether kaizen is a prerequisite to organizational effectiveness for continuously identifying new opportunities and gaining competitive advantages has increased. In addition, the effect of the customer-supplier relationship on organizational culture and productivity has gained substantial attention in recent studies, largely due to the expanding gap and misunderstanding of the benefits of continuous improvement (kaizen). The current study examines the mediating effect of customer-supplier relationships on organizational culture, continuous improvement, and productivity. Target respondents consisted of 240 Ethiopian manufacturing companies located in multiple industrial parks and used to collect the required data. Partial least squares-based structural equation modeling (PLS-SEM) was used to examine the mediating effect of customer-supplier relationship on kaizen and productivity. The outcome suggested that the customer-supplier relationship mediates kaizen and productivity. It also indicated that, in order to maintain organizational productivity, firms must differentiate themselves through cultivation of organizational culture and customer-supplier relationships.

Anahtar Kelimeler

• Continuous improvement
• customer-supplier relationship
• organizational culture
• PLS-SEM

Kaynakça

1. AACCSA & DAB DRT. (2014). MANUFACTURING SURVEY ANALYSIS 2014 Addis Ababa, Ethiopia: Addis Ababa chamber of Commerce. google scholar
2. Ahmed, Hassan, & Fen. (2005). Performance Measurement and Evaluation in an Innovative Modern Manufacturing System. Journal of Applied Science, 5(2), 385-401. google scholar
3. Ahmed, P. K., Loh, A. Y., & Zairi, M. (1999). ‘Cultures for continuous improvement and learning. Total Qual. Manag., 10(4), 426-434. google scholar
4. Aktaua, E., Çiçekb, I., & Kıyakc, M. (2011). The Effect Of Organizational Culture On Organizational Efficiency: The Moderating Role Of Organizational Environment and CEO Values. 7th International Strategic Management Conference. 24 Elsevier Ltd. google scholar
5. Alexandra Jancikova, K. B. (2009). TQM and Organizational Culture as Significant Factors in Ensuring Competitive Advantage: A Theoretical Perspective. Economics & Sociology, 2(1), 80-95. google scholar
6. Anand, G., Ward, P. T., Tatikonda, M. V., & Schilling, D. A. (2009). Dynamic capabilities through continuous improvement infrastructure. Journal of Operations Management,27(6), 444-461. google scholar
7. Antony, J., Rodgers, B., & Cudney, E. A. (2017). Lean Six Sigma in policing services: case examples, lessons learnt and directions for future research. google scholar
8. Asaad, M. N., Rohaizah, S., & Yusoff, R. Z. (2015). 5s, Kaizen and Organization Performance: Examining the Relationship and Level of Implementation Using Rasch Model in Malaysian Automotive Company. International Academic Research Journal of Business and technology. google scholar

9. Asayehgn. (2011). the Transferability of the Japanese Kaizen Management Lessons for Ethiopia. . Dominican University of California. google scholar
10. Assefa. (2011). Implementation of Continuous Improvement (Kaizen) Tools and Its Challenges in Garment Factories (Case: MAA Garment and Textile Factory). Addis Ababa: AAU library. google scholar
11. Assefa, G. (2016). assessment of kaizen implementation of kaizen and its challenges . addis ababa : addis ababa university. google scholar
12. Aurel, T. M., Andreea, R., & Simina, T. S. (2015). Continuous Quality Improvement in Modern Organizations through Kaizen Management . . In Proceedings 9th Research Quality Expert Conference with International Participations, (pp. 27-32). google scholar
13. Bamgbade, J., Kamaruddeen, A., Nawi, M., Yusoff, R., & Bin, R. (2018). Does Government Support Matter? Influence of Organizational Culture on Sustainable Construction among Malaysian Contractors. Int. J. Constr. Manag, 18, 93-107. google scholar
14. Barclay, D., Thompson, R., & dan Higgins, C. (1995). The Partial Least Squares (PLS) Approach to Causal Modeling: Personal Computer Adoption and Use an Illustration. Technol. Stud., 2, 285-309. google scholar
15. Barton, H. (2013). ‘Lean’policing? New approaches to business process improvement across the UK police service. Public Money & Management, 33, 221-224. google scholar
16. Boer, H., & Gertsen, F. (2003). From continuous improvement to continuous innovation: a (retro)(per) spective. International Journal of Technology Management, 26(8), 805-827 google scholar
17. Bolatan, G., Gozlu, S., Alpkan, L., & Zaim, S. (2016). The Impact of Technology Transfer Performance on Total Quality Management and Quality Performance. Social and Behavioral Sciences, 23(5). google scholar
18. Boulding, Staelin, Ehret, M., & Johnson. (2005). A Customer Relationship Management Roadmap: What Is Known, Potential Pitfalls, and Where to Go,” 69 (4):. Journal of Marketing„ 69, 155-166. google scholar
19. Carvalho, P. d., & Pereira, W. L. (2015). Kaizen: A Continuous Process of Improving Companies. Rev. de Gest. Tecnol., 3, 11-19. google scholar
20. Chatman, J., Caldwell, D., O’Reilly, C., & Doerr, B. (2014). Parsing organizational culture: How the norm for adaptability influences the relationship between culture consensus and financial performance in high-technology firms. Journal of Organizational Behavior, 35, 785-808. google scholar
21. Chen, F. (2007). Sensitivity of Goodness of Fit Indexes to Lack of Measurement Invariance. Struct. Equ. Model, 14, 464-504. google scholar
22. Chin, W. (1998). The Partial Least Squares Approach to Structural Equation Modeling. In Modern Methods for Business Research. Mahwah, NJ, USA: Lawrence Erlbaum Associates Publishers. google scholar
23. Christopher, M., Payne, A., & Ballantyne, D. (1991). "Relationship marketing. Butterworth-Heinemann: Oxford. google scholar
24. Coelho, C., Mojtahedi, M., Kabirifar, K., & Yazdani, M. (2022). Influence of Organisational Culture on Total Quality Management Implementation in the Australian Construction Industry. Buildings„ 12(4), 496 google scholar
25. Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences. . NJ Lawrence Earlbaum Assoc. google scholar
26. Cohen, J. (1992). A power primer. Psychological Bulletin, 112(1), p. 15 google scholar
27. Danese, P., Romano, P., & Boscari, S. (2017). The transfer process of lean practices in multi-plant companies. International Journal of Operations & Production Management,37(4), 468-488. google scholar
28. Danish, R. Q., Munir, Y., & Butt, S. S. (2012). Moderating Role of Organizational Culture Between Knowledge Management and Organizational Effectiveness in Service Sector. World Applied Sciences Journal, 20 (1), 45-53. google scholar
29. Diamantopoulos, A., & Siguaw, J. (2000). Introducing LISREL: A Guide for the Uninitiated. Sage. google scholar
30. Dombrowski, U., Mielke, T., & Engel, C. (2012). Knowledge Management in Lean Production Systems. PROCEDIA CIRP, 3, 436-441. doi:10.1016/j.procir.2012.07.075 google scholar
31. Ephraim. (2014). Analysis of Kaizen Implementation in Northern Ethiopia’s manufacturing Industries. 3(8). google scholar
32. Fahed, A., & Maged, A. (2013). The Effect of Organizational Culture on CRM Success. European, Mediterranean & Middle Eastern Conference on Information Systems . Windsor, United Kingdom . google scholar
33. Farris, J. A. (2006). “An Empirical Investigation of Kaizen Event Effectiveness: Outcomes and Critical Success Factors,” Ph.D. dissertation, Ind. Syst. Eng., Virginia Polytechnic . Blacksburg, Virginia: Institute and State University. google scholar
34. Farris, J. A., Van Aken, E. M., Doolen, T. L., & Worley, J. (2008). Learning from less successful Kaizen events: a case study. Engineering Management Journal, 20(3), 10-20 google scholar
35. Fornell, C., & Larcker, D. (1981). Evaluating Structural Equation Models with Unobservable Variables and Measurement Error. . J. Mark. Res., 18, 39-50. google scholar
36. Fowler. (2002). Survey research methods (3rd Ed.). Thousand Oaks, CA: Sage Publications. google scholar
37. Franco, C. W., Benitez, G. B., de Sousa, P. R., Neto, F. J., & Frank, A. G. (2022). A contingency-configurational view of purchasing operations: The mediating role between supplier relationship and firm performance. . Journal of Purchasing and Supply Management. google scholar
38. Fullerton, R. R., Kennedy, F. A., & Widener., S. K. (2013). “Management accounting and control practices in a lean manufacturing environment,”. Account.„ Org. Soc, 38(1),50-71. google scholar
39. Garcia, J., Maldonado, A. A., Alvarado, A., & Rivera, D. G. (2014). Human critical success factors for kaizen and its impacts in industrial performance. The International Journal of Advanced Manufacturing Technology, 70, 9-12. google scholar
40. Gefen, D. (2000). Structural Equation Modeling and Regression: Guidelines for Research Practice Structural. Struct. Equ. Model. 4(7). google scholar
41. Getachew, G. (2017). assessment of kaizen implementation and challenges toward sustainability . addis ababa ,ethiopia oct 2017 : addis ababa university . google scholar
42. Girma, A. (2016). The implementation of Kaizen theory :Achievements. Addis Ababs: AAU, library . google scholar
43. Glover, W. J., Farris, J. A., Aken, E. M., Van, & Doolen, T. L. (2011). Critical success factors for the sustainability of Kaizen event human resource outcomes: An empirical study. Int. J. Prod. Econ, 132(2), 197-213. doi: 10.1016/j.ijpe.20H.04.005 google scholar
44. Gonzalez-Aleu, F., & Van Aken, E. (2016). Systematic literature review of critical success factors for continuous improvement projects. International Journal of Lean Six Sigma, 7(3), 214-232. google scholar
45. Götz, O., Liehr-Gobbers, K., & Krafft, M. (2010). Evaluation of Structural Equation Models Using the Partial Least Squares (PLS) Approach. In Handbook of Partial Least Squares . Berlin/Heidelberg, Germany: Springer. google scholar
46. Hair, J., Hult, G., Ringle, C., & Sarstedt, M. (2016). A Primer on Partial Least Squares Structural Equation Modeling (PLS-SEM),. Sage Publications. google scholar
47. Hair, J., Ringle, C., & Sarstedt, M. (2011). J. Mark. Theory Pract. 2, 19, 139-152. google scholar
48. Hair, J., Ringle, C., & Sarstedt, M. (2013). Partial Least Squares Structural Equation Modeling: Rigorous Applications, Better Results and Higher Acceptance. Long Range Plan, 46, 1-12. google scholar
49. Hair, J., Ringle, C., & Sarstedt, M. (2013). Partial Least Squares Structural Equation Modeling: Rigorous Applications, Better Results and Higher Acceptance. Long Range Plan, 46, 1-12. google scholar
50. Hair, J., Sarstedt, M., Ringle, C., & Mena, J. (2012). An Assessment of the Use of Partial Least Squares Structural Equation Modeling in Marketing Research. J. Acad. Mark. Sci., 40, 414-433. google scholar
51. Hartini, S., & Ciptomulyono, U. (2015). The Relationship between Lean and Sustainable Manufacturing on Performance: Literature Review. Procedia Manufacturing„ 4, 38- 45 doi:10.1016/j.promfg.2015.11.012 google scholar
52. Hashim, S., Zubir, A. F., Conding, J., Jaya, N. A., & Habidin, N. F. (2012). Kaizen Event and Innovation Performance in Malaysian Automotive Industry. Business Management and Strategy, 3(2), 11 google scholar
53. Henseler, J., Hubona, G., & Ray, P. (2016). Using PLS Path Modeling in New Technology Research : Updated Guidelines (Vol. 116). nd. Manag. Data Sys. google scholar
54. Henseler, J., Ringle, C., & Sarstedt, M. (2015). A new criterion for assessing discriminant validity in variance-based structural equation modeling. Journal of the Academy of Marketing Science, 43(1), 115-135. google scholar
55. Henseler, J., Ringle, C., & Sinkovics, R. (2009). The Use of Partial Least Squares Path Modeling in International Marketing. Adv. Int. Mark, 20, 277-319. google scholar
56. Henseler, J., Ringle, C., & Sinkovics, R. (2009). The Use of Partial Least Squares Path Modeling in International Marketing. Adv. Int. marketing, 20, 277-319. google scholar
57. Hinton, Brownlow, C., & McMurray. (2004). SPSS Explained. Routledge. google scholar
58. Hinton, P., Brownlow, C., & McMurray, I. (2004). Routledge. google scholar
59. Ho, R. (2013). Hand book of Univariate and Multivariate Data Analysis and Interpretation with IBM SPSS. Abingdon-on-Thames, Oxfordshire, UK: Taylor&Francis. google scholar
60. Hong, Guo, Chen, Li. (2022). The adoption of sustainable supply chain management and the role of organisational culture: a Chinese perspective. International Journal of Logistics Research and Applications, 25(1), 52-76. google scholar
61. Hu, L., Bentler, P. (1998). Fit Indices in Covariance Structure Modeling: Sensitivity to Underparameterized Model Misspecification. Psychol. Methods, 3, 424-453. google scholar
62. Huang, X., Rode, J. C., & Schroeder, R. G. (2011). ‘Organizational structure and continuous improvement and learning: Moderating effects of cultural endorsement of participative leadership. J. Int. Bus. Stud, 42(9), 1103-1120. google scholar
63. Imai, M. (1997). Gemba Kaizen: A commonsense, low-co t approach to management. . McGraw Hill Professional. google scholar
64. Imran, M., Ismail, F., Arshad, I., Zeb, F., & Zahid, H. (2022). The mediating role of innovation in the relationship between organizational culture and organizational performance in Pakistan’s banking sector. Journal of Public Affairs, 22, ., 2717 google scholar
65. Imran, M., Ismail, F., Arshad, I., Zeb, F., & Zahid, H. (2022). The mediating role of innovation in the relationship between organizational culture and organizational performance in Pakistan’s banking sector. Journal of Public Affairs., e2717. google scholar
66. Inuwa, M., Islam, K. A., & Male, I. G. (2022). THE INDIRECT EFFECT OF CUSTOMER RELATIONS ON LEAN SOCIAL FACTORS AND ORGANIZATIONAL READINESS FOR CHANGE AMONGST MANUFACTURING SMES IN NIGERIA: PLS-SEM APPROACH. The Millennium University Journal, 7(1) , 8-28. google scholar
67. Iriana, R., & Buttle, F. (2006). Customer Relationship Management (CRM) System Implementations. The international journal of knowledge, culture and change management, 6(2), 137-147. google scholar
68. Iriana, R., Buttle, F., & Ang, L. (2013). Does organizational culture influence CRM’s financial outcomes. Journal of Marketing Management„ 29(3/4), 467-493. google scholar
69. J. de Haan, F. N., & Overboom, M. (2012). Creative tension in a lean work environment: Implications for logistics firms and workers,. Int J. google scholar
70. Prod. Econ., 137(1), 157-164. doi:10.1016/j.ijpe.2011.11.005 google scholar
71. Jager, B. d., Minnie, C., Jager, J. d., Welgemoed, M., Bessant, J., Francis, D., . . . Francis, D. (2004). Enabling continuous improvement: a case study of implementation. J. Manuf. Technol. Manag. google scholar
72. Kang, J. (2004). A study on the factors associated with the success of CRM in the insurance company. Korean Data Information Science Society„ 15(1), 1197-224. google scholar
73. Ko, E., Lee, S., & Woo, J. (2004). Current CRM adoption in the Korean apparel industry", Spring conference proceedings of Korean Society of Clothing & Textiles, Seoul. Spring conference proceedings of Korean Society of Clothing & Textiles. Seoul. google scholar
74. Ko, Kim, Kim, & Woo. (2008). Organizational characteristics and the CRM adoption process. Journal of Business Research, 61(1), 65-74. google scholar
75. Lee, K., Woo, H. G., & Joshi, K. (2017). Pro-innovation culture, ambidexterity and new product development performance: Polynomial regression and response surface analysis. European Management Journal, 35(2), 249-260. google scholar
76. Lendzion, J. P. (2015). Human Resources Management in the System of Organizational Knowledge Management. Procedia Manufacturing, 3, 674-680. google scholar
77. Lien, Y., & Li, S. (2013). Does diversification add firm value in emerging economies? Journal of Business Research, 66, 2425-2430. google scholar
78. Lin, C.-L., & Jeng, C.-H. (2017). Exploring Interface Problems in Taiwan’s Construction Projects Using Structural Equation Modeling. Sustainability. 9, 822 google scholar
79. Lindgreen, A., Palmer, R., Vanhamme, J., & Wouters, J. (2006). A relationshipmanagement assessment tool: Questioning, identifying, and prioritizing critical aspects of customer relationships. Industrial Marketing Management, 35(1), 57 - 71 google scholar
80. McDermott, O., Antony, J., Sony, M., & Healy, T. (2022). Critical failure factors for continuous improvement methodologies in the Irish medtech industry. . The TQM Journal. google scholar
81. Mishra, S., & Gupta, A. (2010). Kaizen Culture: Enabling Organizational Change Management for Sustainable Competitive Advantage. Global Journal of Enterprise Information System, 2, 58-67. google scholar
82. Morgan, & Krejcie. (1970). “Determining Sample Size for Research Activities”. ducational and Psychological Measurement, 30, 607-610). google scholar
83. Nguyen, P. A., & Robinson, A. G. (2015). Continuous improvement in Vietnam: unique approaches for a unique culture. J. Asia Bus. Stud., 9(2),195-211. google scholar
84. Oki, K. (2012). A Japanese Factory in Thailand. Annals of Business Administrative Science, 11, 55-63. google scholar
85. O’Leary, C., Rao, S.,& Perry, C. (2004). Improving customer relationship management through database/Internet marketing: a theory building action research project. European Journal of Marketing, 38 (3/4), 338-354. google scholar
86. Otsuka, K., Jin, K., & Sonobe, T. (2018). Kaizen as Policy Instrument:The Case of Ethiopia. In g. tadesse, appliying the kaizen in africa (p. 151). google scholar
87. Palmer, V. S. (2001). Inventory management Kaizen,” in Proc. 2nd Int. Work.Eng. Manage. Appl. Techno.-EMAT 2001., (pp. 55-56). google scholar
88. Pearce, A. D., & Pons, D. J. (2017). Defining Lean Change—Framing Lean Implementation in Organizational Development. ” Int. J. Bus. google scholar
89. Manage., , 12(4), 10-22. doi:10.5539/jbm.v12n4p10 google scholar
90. Peng, D., & Lai, F. (2012). Using Partial Least Squares in Operations Management Research: A Practical Guideline and Summary of Past Research. J. Oper. Manag, 30, 467-480. google scholar
91. Plecher. (2020, Jul 28). statista. Retrieved jul 29, 2020, from www.statista.com google scholar
92. Poksinska, B. B., Fialkowska-Filipek, M., & Engström, J. (2016). Does Lean healthcare improve patient satisfaction? A mixed-method investi-gation into primary care. . BMJ Qual Saf,. google scholar
93. Rigby, D. K., Reichheld, F. F., & Schefter. (2002). Avoid the Four Perils of CRM. Harvard Business Review, 80(2), 101-109. google scholar
94. Ringle, C., Wende, S., & Becker, J. (2015). SmartPLS 3 Retrieved May 21, 2020, from http://www.smartpls.de google scholar
95. Rizzi, F., Gigliotti, M., & Annunziata, E. (2022). Exploring the nexus between GSCM and organisational culture: insights on the role of supply chain integration. . Supply Chain Management: An International Journal. google scholar
96. Roh, T. H., Ahn, C. K., & Han, I. (2005). The priority factor model for customer relationship management system success. Expert Systems with Applications, 28(4), 641-654. google scholar
97. Saldivar. (2012). a primer on survey response rate. Retrieved from http://megaldivar.weebly.com/uploads/8/5/1/8/8518205/saldiver_primer_on_survey_respos google scholar
98. Sanchez-Ruiz, L., Gomez-Lopez, R., & Rojo, B. B. (2022). Key facilitators to continuous improvement: a Spanish insight. . Business Process Management Journal, (ahead-of- print). google scholar
99. Sarstedt, M., Ringle, C., Smith, D., Reams, R., & Hair, J. (2014). PartialLeastSquaresStructuralEquationModeling (PLS-SEM): A Useful Tool for Family Business Researchers. J. Fam. Bus. Strateg., 5, 105-115. google scholar
100. Satsomboon, W., & Pruetipibultham, O. (2014). Creating an organizational culture of innovation: case studies of Japanese multinational companies in Thailand. Human Resource Development International, 17(1), 110- 120 google scholar
101. Schein, E. H. (1983). The role of the founder in creating organizational culture. Organizational dynamics, 12(1), 13-28. google scholar
102. Schein, E. H. (2004). Organizational culture and leadership. Jossey-Bass Inc. Pub. google scholar
103. Shah, S., Ganji, N. E., & Coutroubis. (2017). A. Lean production practices to enhance organisational performance. Paper presented at The 21st International Conference on Circuits, Systems, Communications and Computers. Greece. google scholar
104. Shuaib, K. M., & He, Z. (2022). Mediating effect of organisational learning and moderating role of organisational culture on the relationship between total quality management and innovation among manufacturing companies in Nigeria. . Total Quality Management. google scholar
105. Sobek II, D. K., & Smalley, A. (2011). Understanding A3 thinking: a critical component of Toyota’s PDCA management system. Sondakh: CRC Press. google scholar
106. Sondakh, O., Christiananta, B., & Ellitan, L. (2017). Measuring Organizational Performance: A Case Study of Food Industry SMEs in Surabaya-Indonesia. . International Journal of Scientific Research and Management, 7681-7689. google scholar
107. Stein, A., & Smith, M. (2009). CRM systems and organizational learning: An exploration of the relationship between CRM effectiveness and the customer information orientation of the firm in industrial markets. Industrial Marketing Management, 38(2), 19 google scholar
108. Stock, R. M., Six, B., & Zacharias, N. A. (2013). Linking multiple layers of innovation-oriented corporate culture, product program innovativeness, and business performance: A contingency approach. Journal of the Academy of Marketing Science, 41(3), 283-299. google scholar
109. Suarez -Barraza, M. F., Ramis-Pujol, J., & Estrada-Robles, M. (2012). Applying Gemba-Kaizen in a multinational food company: a process innovation framework. International Journal of Quality and Service Sciences, 4(1), 27-50. google scholar
110. Suarez-Barraza, M. F., & Smith, T. (2012). The Kaizen approach within process innovation: findings from a multiple case study in Ibero-American countries. Total Quality Management & Business Excellence, 25(9), 1002-1025. google scholar
111. Tadesse, G. (2018). Applying the Kaizen in Africa. google scholar
112. Tenenhaus, M., Esposito Vinzi, V., Chatelin, Y.-M., & Lauro, C. (2005). PLS Path Modeling. Comput. Stat. DataAnal, 48, 159-205. google scholar
113. Tzokas, N., & Saren, M. (2004). Competitive advantage, knowledge and relationship marketing: Where, what and how? Journal of Business and Industrial Marketing, 124- 135 google scholar
114. UNID. (2019). driving inclusive and sustainable industrial development. demand for manufacturing. google scholar
115. UNIDO. (2018). ndustrial park development in Ethiopia Case study report. DEPARTMENT OF POLICY, RESEARCH AND STATISTICS . google scholar
116. Vienna, Austria : UNITED NATIONS INDUSTRIAL DEVELOPMENT ORGANIZATION. google scholar
117. Venkataiah, D., & Sagi, D. (2012). Relationship between Kaizen Events and Perceived Quality Performance in Indian Automobile Industry. . International Journal of Management and Business Studies„ 25-28. google scholar
118. Wahab, A. (2022). Lean Manufacturing and Sustainable Performance with a Moderation of Organizational Culture: Lean Manufacturing and Sustainability. South Asian Journal of Operations and Logistics, (ISSN: 2958-2504), 1(2), , 30-52. google scholar
119. Yadav, O. P., Nepal, B. P., Rahaman, M. M., & Lal, V. (2017). Lean Implementation and Organizational Transformation: A Literature Review. Eng. Manage. J., 19(1), 2-16. doi:10.1080/10429247.2016.1263914 google scholar
120. Zablah, A. R., Bellenger, D. N., & Johnston, W. J. (2004). Customer relationship management implementation gaps. Journal of Personal Selling and Sales Management, 279-295. google scholar
121. Zarinah, A. R., Farhana, A. N., & Nadiah, A. H. (2017). Lean production and business performance: influences of leadership styles. Journal of Fundamental and Applied Sciences, 9(55), 1030-1051. google scholar
122. Zehir, C., Ertosunb, O. G., Zehir, S., & Müceldilli, D. (2012). Total Quality Management Practices Effects on Quality. Social and Behavioral Sciences„ 273-280. . google scholar