Relational demography has recently been employed to investigate the influence of workplace diversity on organizational outcomes, such as organizational commitment, turnover, and performance (O'Reilly, Caldwell, & Barnett, 1989; Tsui & O'Reilly, 1989; Tsui, Egan, & O'Reilly, 1992; Tsui, Egan, & Porter, 1994). In the present study, we utilize the techniques and theoretical framework employed in the relational demography literature to examine the impact of heterogeneous union membership status within work groups and vertical dyads, and the effect of these differences on union commitment. A composite dataset was created from two Australian hospitals. Analyses of the data were confined to 460 nursing staff who could be identified within 43 specific work groups (hospital wards). The results indicate that while no relationship was found between differences in membership status among co-workers in work groups on commitment, differences between members and their supervisors served to decrease union loyalty and belief in unionism (controlling for other union and organizational factors). Importantly, we found support for an interaction effect between work groups and vertical dyads. Differences in membership status among co-workers were observed to lower union loyalty and willingness to work for the union when supervisors were nonunion members. The implications of such findings for union policy are addressed.
ANDERSON, J. C., & GERBING, D. W.Structural equation modelling in practice: A review and recommended two step approach. Psychological Bulletin, 1988, 103, 411-423.
3.
ANGLE, H. L., & PERRY, J. L.Dual commitment and labor management relationship climates. Academy of Management Journal, 1988, 29, 31-50.
4.
ASHFORTH, B. E., & MAEL, F.Social identity theory and the organization. Academy of Management Review, 1989, 14, 20-39.
5.
BAGGOZZI, R. P., & YI, Y.On the evaluation of structural equation models. Academy of Marketing Science, 1988, 16, 74-94.
6.
BARLING, J., FULLAGAR, C., & KELLOWAY, E. K.The union and its members: A psychological approach. New York: Oxford University Press, 1992.
7.
BECKER, T. E.Foci and bases of commitment: Are they distinctions worth making?Academy of Management Journal, 1992, 35, 232-244.
8.
BENTLER, P. M.Comparative fit indexes in structural models. Psychological Bulletin, 1990, 107, 238-246.
9.
BENTLER, P. M.Multivariate analysis with latent variables: Causal modelling. Annual Review of Psychology, 1980, 31, 419-517.
10.
BERRY, W., & FELDMAN, S.Multiple regression in practice. Beverly Hills, CA: Sage University Paper Series on Quantitative Applications in the Social Sciences, Sage Publications, 1985.
11.
BLAU, P.Exchange and power in social life. New York: Wiley, 1964.
12.
BROWN, R., CONDOR, S., MATHEWS, A., WADE, G., & WILLIAMS, J.Explaining intergroup differentiation in an industrial organization. Journal of Occupational Psychology, 1986, 59, 273-286.
13.
BUSEMEYER, J. R., & JONES, L. E.Analysis of multiplicative combination rules when the causal variables are measured with error. Psychological Bulletin, 1983, 93, 549-562.
14.
COBB, A. T., & FREY, E. M.The effect of leader fairness and pay outcomes on superior/subordinate relations. Journal of Applied Social Psychology, 1996, 26, 1401-1426.
15.
COHEN, J., & COHEN, P.Applied multiple regression/correlation analysis for the behavioral sciences (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates, 1983.
16.
CORTINA, J. M.What is coefficient alpha? An examination of theory and applications. Journal of Applied Psychology, 1993, 78(1), 98-104.
17.
CRONBACH, L. J.Coefficient alpha and the internal structure of tests. Psychometrika, 1951, 16, 297-334.
18.
DANSERAU, F., Jr., GRAEN, G., & HAGA, W.A vertical dyad linkage approach to leadership within formal organizations: A longitudinal investigation of the role making process. Organizational Behavior and Human Performance, 1975, 13, 46-78.
19.
DARLINGTON, R. B.Regression and linear models. New York: McGraw-Hill, 1990.
20.
DASTMALCHIAN, A., BLYTON, P., & ADAMSON, R.The climate of workplace relations. London: Routledge, 1991.
21.
DASTMALCHIAN, A., BLYTON, P., & ADAMSON, R.Industrial relations climate: Testing a constructJournal of Occupational Psychology, 1989, 62, 21-32.
22.
DEERY, S. J., IVERSON, R. D., & ERWIN, P. J.Predicting organizational and union commitment: The effect of industrial relations climate. British Journal of Industrial Relations, 1994, 32, 559-575.
23.
DUARTE, N. T., GOODSON, J. R., & KLICH, N. R.How do I like thee? Let me appraise the ways. Journal of Organizational Behavior, 1993, 14, 239-249.
24.
DUCHON, D., GREEN, S. G., & TABER, T. D.Vertical dyad linkage: A longitudinal assessment of antecedents, measures and consequences. Journal of Applied Psychology, 1986, 71, 56-60.
25.
EVAN, W. M., & ZELDITCH, M.A laboratory experiment on bureaucratic authority. American Sociological Review, 1961, 26, 883-893.
26.
EVATT FOUNDATION. Unions 2001: A blueprint for trade union activism. NSW: Fast Books, 1995.
27.
FRIEDMAN, L., & HARVEY, R. J.Factors of union commitment: The case for a lower dimensionality. Journal of Applied Psychology, 1986, 71, 371-376.
28.
FUKAMI, C. V., & LARSON, E. W.Commitment to company and union: Parallel models. Joumal of Applied Psychology, 1984, 69, 367-371.
29.
FULLAGAR, C.A factor analytic study on the validity of a union commitment scale. Journal of Applied Psychology, 1986, 71, 129-136.
30.
FULLAGAR, C., & BARLING, J.A longitudinal test of a model of the antecedents and consequences of union loyalty. Journal of Applied Psychology, 1989, 74, 213-227.
31.
FULLAGAR, C., CLARK, P., GALLAGHER, D., & GORDON, M. E.A model of the antecedents of early union commitment: The role of socialization and steward characteristics. Journal of Organizational Behavior, 1994, 15, 517-533.
32.
FULLAGAR, C., GALLAGHER, D. G., GORDON, M. E., & CLARK, P. E.Impact of early socialization on union commitment and participation: A longitudinal study. Joumal of Applied Psychology, 1995, 80, 147-157.
33.
FULLAGAR, C., McCOY, D., & SHULL, C.The socialization of union loyalty. Journal of Organizational Behavior, 1992, 13, 13-26.
34.
GALLAGHER, D. G., & CLARK, P. F.Research on union commitment: Implications for labor. Labor Studies Joumal, 1989, 14, 52-71.
35.
GORDON, M. E., BEAUVAIS, L. L., & LADD, R. T.The job satisfaction and union commitment of unionized engineers. Industrial and Labor Relations Review, 1984, 37, 359-370.
36.
GORDON, M. E., PHILPOT, J. W, BURT, R. E., THOMPSON, C. A., & SPILLER, W E.Commitment to the union: Development of a measure and an examination of its correlates, Joumal of Applied Psychology, 1980, 65, 479-499.
37.
GRAEN, G., & CASHMAN, J.A role-making model of leadership in formal organizations: A development approach. In J. G. Hunt and L. L. Larson (Eds.), Leadership frontiers. Kent, OH: Kent State University Press, 1975, pp. 143-165.
38.
GRAEN, G., NOVAK, M. A., & SOMMERKAMP, P.The effects of leader-member exchange and job design on productivity and satisfaction: Testing a dual attachment model. Organizational Behavior and Human Performance, 1982, 30, 109-131.
39.
HAYDUK, L. A.Structural equation modelling with LISREL: Essentials and advances. Baltimore: John Hopkins University Press, 1987.
40.
IVERSON, R. D., & BUTTIGIEG, D.Union commitment: Implications for union participation and exit-voice. Labour and Industry, 1995, 6(3), 95-111.
41.
IVERSON, R. D., & KURUVILLA, S.Antecedents of union loyalty: The influence of individual dispositions and organisational context. Joumal of Organizational Behavior, 1995, 16, 557-582. (a)
42.
IVERSON, R. D., & KURUVILLA, S.Does dual commitment underlie company and union commitment? Evidence from Australia, Sweden and the United States. Research & Practice in Human Resource Management, 1995, 3 (1), 15-38. (b)
43.
JACCARD, J., & WAN, C. K.Lisrel approaches to interaction effects in multiple regression. Newbury Park, CA: Sage University Papers series on Quantitative Applications in the Social Sciences, 07-114, Sage, 1996.
JÖRESKOG, K. B., & YANG, F.Non-linear structureal equation models: The Kenny-Judd model with interaction effects. In G. Marcoulides and R. Schumacker (Eds.), Advanced structural equation modeling. Hillsdale, NJ: Lawrence Erlbaum, 1996, pp. 57-88.
46.
JUDGE, T. A.Does affective disposition moderate the relationship between job satisfaction and voluntary turnover?Journal of Applied Psychology, 1993, 78, 395-401.
47.
KELLOWAY, K. E., & BARLING, J.Members' participation in local union activities: Measurement, prediction and replication. Journal of Applied Psychology, 1993, 78, 262-279.
48.
KELLY, C., & KELLY, J.Who gets involved in collective action?: Social psychological determinants of individual participation in trade unions. Human Relations, 1994, 47, 63-88.
49.
KENNY, D. A., & JUDD, C. M.Estimating the nonlinear and interactive effects of latent variables. Psychological Bulletin, 1984, 96, 201-210.
50.
KLANDERMANS, B.Union commitment: Replications and tests in the Dutch context. Journal of Applied Psychology, 1989, 74, 869-875.
51.
KURUVILLA, S. C., GALLAGHER, D. G., & WETZEL, K.The development of union attitudes: Evidence from Sweden and Canada. Industrial and Labor Relations Review, 1993, 46, 499-514.
52.
KURUVILLA, S., & IVERSON, R. D.A confirmatory factor analysis of union commitment in Australia. Journal of Industrial Relations, 1993, 35, 436-452.
53.
LAWLER, E. J., & YOON, J.Commitment in exchange relations: Test of a theory of relational cohesion. American Sociological Review, 1996, 61, 89-101.
54.
LIDEN, R. C., & GRAEN, R.Generalizability of the vertical dyad linkagemodel of leadership. Academy of Management Journal, 1980, 23, 451-465.
55.
LIN, K., & KMENTA, J.Ridge regression under alternative loss criteria. Review of Economics and Statistics, 1982, 64, 488-494.
56.
McLANE, W. E.The interaction of leader and member characteristics in the leader-member exchange (LMX) model of leadership. Small Group Research, 1991, 22, 283-300.
57.
MANOGRAN, P., & CONLON, E.A Leader-Member Exchange Approach to Explaining Organizational Citizenship Behavior. Paper presented at the 53th Annual Academy of Management Meetings, Atlanta, Georgia, 1993.
58.
MELLOR, S.The relationship between membership decline and union commitment: A field study of local unions in crisis. Joumal of Applied Psychology, 1990, 75, 258-267.
59.
MITCHELL, R.Notes on the Employee Relations Act 1992 (Victoria). Working Paper No. 70, Department of Management and Industrial Relations, University of Melbourne, 1993.
60.
MORELAND, R., LEVINE, J., & CINI, M.Group socialization: The role of commitment. M. A. Hogg and D. Abrams (Eds.), Group motivation: Social psychological perspectives, Hertfordshire: Harvester/Wheatsheaf, 1993.
61.
NG, I.Determinants of union commitment among university faculty. Relations Industrielles, 1989, 44, 769-784.
62.
O'REILLY, C. A., III, CALDWELL, D. F, & BARNETT W. P.Work group demography, social integration, and turnover. Administrative Science Quarterly, 1989, 34, 21-37.
63.
PEDHAZUR, E. J.Multiple regression in behavioral research. New York: CBS College Publishing, 1982.
64.
PRICE, J. L., & MUELLER, C. W.A causal model of turnover for nurses. Academy of Management Journal, 1981, 24, 543-565.
65.
REICHERS, A. E.A review and reconceptualization of organizational commitment. Academy of Management Review, 1985, 10, 465-476.
66.
SAVERY, L. K., SOUTAR, G. N., & DUFTY, N. F.Union Commitment: The Case of the Australian Bank Employees Union. Discussion Paper 90/3 of the Westem Australian Labour Market Research Centre, 1990.
67.
SETTOON, R. P., BENNETT, N., & LIDEN, R. C.Social exchange in organizations: Perceived organizational support, leader-member exchange, and employee reciprocity. Journal of Applied Psychology, 1996, 81, 219-227.
68.
SMITH, C. B.Do legitimacy of supervisor and reward contingency interact in prediction of work behavior?Human Relations, 1984, 37, 1029-1046.
69.
TAJFEL, H.La Categorisation Sociale Social categorization. In S. Moscoici (Ed.), Introduction a la Psychologie Sociale (Vol. 1.). Paris: Larousse, 1972.
70.
TAJFEL, H., & TURNER, J. C.The social identity theory of intergroup behavior. In S. Worchel and W. G. Austing (Eds.). Psychology of intergroup relations. Chicago: Nelson Hall, 1986.
71.
THACKER, J. W., FIELDS, M. W., & BARCLAY, L. A.Union commitment: An examination of antecedent and outcome factors. Joumal of Occupational Psychology, 1990, 63, 33-48.
72.
THACKER, J. W., FIELDS, M. W., & TETRICK, L. E.The factor structure of union commitment: An application of confirmatory factor analysis. Journal of Applied Psychology, 1989, 74, 228-232.
73.
TSUI, A. S., EGAN, T. D., & O'REILLY, C. A., III. Being different: Relational demography and organizational attachment. Administrative Science Quarterly, 1992, 37, 549-579.
74.
TSUI, A. S., EGAN, T. D., & PORTER, L. W.Performance Implications of Relational Demography in Vertical Dyads. Paper presented at the 54th Annual Academy of Management Meetings, Dallas, Texas, 1994.
75.
TSUI, A. S., & O'REILLY, C. A., III. Beyond simple demographic effects: The importance of relational demography in superior-subordinate dyads. Academy of Management Journal, 1989, 32, 402-423.
76.
TURNER, J. C.Social categorization and the self-concept: A social-cognitive theory of group behavior. In E. J. Lawler (Ed.), Advances in group processes: Theory and research (Vol. 2), Greenwich, CT. JAI Press, 1985, pp. 77-121.
77.
TURNER, J. C.Toward a cognitive redefinition of the social group. In H. Tajfel (Ed.). Social identity and intergroup relations. Cambridge: Cambridge University Press, 1982, pp. 15-40.
78.
VECCHIO, R. P., & GOBDEL, B. C.The vertical dyad linkage model of leadership: Problems and prospects. Organizational Behavior and Human Performance, 1984, 34, 5-20.
79.
VECCHIO, R. P., GRIFFETH, R. W., & HOM, P WThe predictive utility of the vertical dyad linkage approach. Jounial of Social Psychology, 1986, 126, 617-625.
80.
WAYNE, S. J., & GREEN, S. A.The effects of leader-member exchange on employee citizenship and impression management behavior. Human Relations, 1993, 46, 1431-1440.
