The Investment Model of Relationship Commitment: Factor Analysis, Reliability, and Validity

Mehdi Ghezelseflo, Sayed-Hadi Sayed-Alitabar, Mozhgan Mirza, Maryam VashghaniFarahani

Abstract


29

Background and Objectives: The investment model depicts the theory of interdependence and uses
interconnected structures to analyze the tendency to maintain a relationship. The aim of this study was to examine
the factor structure, reliability and validity of the scale of the investment model of relationship commitment
among couples in Tehran.
Material and Method: This study was a descriptive study with correlation design. Participants included couples
with middle-aged children in Tehran. Cluster random sampling method was used in the study. Data were collected
via the investment model of relationship commitment questionnaire which was developed by Rusbult. To validate
the questionnaire, construct validity, confimatory factor analysis, and convergent validity were used. To test the
reliability of the questionnaire, Cronbach’s alpha and retest reliability coeffiient were used.
Results: Responses of 420 participants, 250 women and 170 men, were analyzed. The Cronbach’s alpha
coeffiient was 0.97 for satisfaction subscales, 0.87 the quality of the alternatives, 0.85 the investment in the
relationship, and 0.67 the marital commitment. Test re-test coeffiient in a two-week interval was 0.94 for the
subscales of satisfaction, 0.86 the quality of the alternatives, 0.82 the investment rate, and 0.67 the personal
commitment. Correlation coeffiients showed that marital adjustment scale had a signifiant correlation of 0.84
with satisfaction subscales, 0.29 substitute quality, 0.55 investment rate, and 0.77 personal commitment, which
indicates a convergent validity, P<0.01. The factor structure of the scale of the investment model was confimed
using a confimatory factor analysis.
Conclusion: The confimatory factor structure, reliability and validity of the investment model of relationship
commitment were acceptable for research and diagnostic applications.


Keywords


Investment Capital Scale, Reliability, Validity, Factor Structure

Full Text:

PDF

20

References


Adams J-M, Jones W-H. The Conceptualization of Marital Commitment: An Integrative Analysis. Journal of

Personality and Social Psychology. 1997;72(5):1177.

Weigel D-J, Ballard-Reisch D-S. Constructing Commitment in Intimate Relationships: Mapping Interdependence

In The Everyday Expressions Of Commitment. Communication Research. 2014;41(3):311-32.

Clements R, Swensen C-H. Commitment to One’s Spouse as a Predictor of Marital Quality Among Older

Couples. Current Psychology. 2000; 19(2):110-9.

Tang C-Y, Curran M-A. Marital Commitment and Perceptions of Fairness in Household Chores. Journal of

Family Issues. 2013; 34(12):1598-622.

Arriaga X-B, Reed J-T, Good Friend W, Agnew C-R. Relationship Perceptions and Persistence: Do Fluctuations

in Perceived Partner Commitment Undermine Dating Relationships? Journal of Personality and Social

Psychology. 2006; 91(6):1045.

Masters A. Marriage, Commitment and Divorce in a Matching Model with Differential Aging. Rev Econ Dyn.

; 11(3):614-28.

Kapinus C-A, Johnson M-P. The Utility of Family Life Cycle as a Theoretical and Empirical Tool Commitment

and Family Life-Cycle Stage. Journal of Family Issues. 2003; 24(2):155-84.

Olson J-R, Goddard H-W, Marshall J-P. Relations among Risk, Religiosity, and Marital Commitment. Journal

of Couple & Relationship Therapy. 2013;12(3):235-54.

Sprecher S. Equity and Social Exchange in Dating Couples: Associations with Satisfaction, Commitment, and

Stability. Journal of Marriage and Family. 2001 Aug 1;63(3):599-613.

Kurdek L-A. Attractions and Constraints as Determinants of Relationship Commitment: Longitudinal Evidence

from Gay, Lesbian, and Heterosexual Couples. Personal Relationships. 2000;7(3):245-62.

Mehdizadegan I, Renani Z-S. Comparing of Sexual Satisfaction, Marital Commitment, Marital Intimacy and

Body Image among Married Employed and Married Housewives Women. International Journal of Psychology.

;51:683.

Harmon D. Black Men and Marriage: The Impact of Spirituality،Religiosity, and Marital Commitment on

Satisfaction. Unpublished Doctoral Dissertation, University of Alabama. 2005.

Rusbult CE. Commitment and Satisfaction in Romantic Associations: A Test of the Investment Model. Journal

of Experimental Social Psychology. 1980;16(2):172-86.

Alaf B-C, Zahrakar K, Sanai B. Effect of Practical Application of Intimate Relationship Skills Program in

Marital Commitment of Couples. Journal of Research & Health. 2017;7(1):653-62.

Gettings P-E, Wilson S-R. Examining Commitment and Relational Maintenance in Formal Youth Mentoring

Relationships. Journal of Social and Personal Relationships. 2014 12(1):53-62.

Etcheverry P-E, Le B, WU T-F, Wei M. Attachment and the Investment Model: Predictors of Relationship

Commitment, Maintenance, and Persistence. Personal Relationships. 2013; 20(3):546-67.

Rodrigues D, Lopes D. The Investment Model Scale (IMS): Further Studies on Construct Validation and

Development of a Shorter Version (IMS-S). The Journal of Ggeneral Psychology. 2013;140(1):16-28.

Impett E-A, Beals K-P, Peplau L-A. Testing the Investment Model of Relationship Commitment and Stability

in a Longitudinal Study of Married Couples. Current Psychology. 2001; 20(4):312-26.

Rusbult C-E, Martz J-M, Agnew C-R. The Investment Model Scale: Measuring Commitment Level, Satisfaction

Level, Quality of Alternatives, and Investment Size. Personal Relationships. 1998;5(4):357-87.

Durko A-M, Petrick J-F. Travel as Relationship Therapy: Examining the Effect of Vacation Satisfaction Applied

to the Investment Model. Journal of Travel Research. 2016;55(7):904-18.

Beals K-P, Impett E-A, Peplau L-A. Lesbians in Love: Why Some Relationships Endure and Others End.

Journal of Lesbian Studies. 2002; 6(1):53-63.

Schmitt T-A. Current Methodological Considerations in Exploratory and Confimatory Factor Analysis. Journal

of Psychoeducational Assessment. 2011; 29(4):304-21.

Hooman, H-A, Askari A. Factor Analysis: Diffiulties and Dilemmas it. Journal of Psychology. 2005: 35, 1-22.

Spanier G-B. Measuring Dyadic Adjustment: New Scales for Assessing the Quality of Marriage and Similar

Dyads. Journal of Marriage and the Family. 1976:15-28.

Sanaei B. The Role Of The Family of Origin in Marriage Children. Journal of Consulting Research and News,

, 21-26. (Full Text in Persian)


Refbacks

  • There are currently no refbacks.


Copyright, Community Health Journal, Social Determinants of Health (SDH) Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.  All Rights Reserved.