Investment Model Scale
Rusbult‚ Martz‚ & Agnew‚ 1998
Satisfaction Level Facet and Global Items
1. Please indicate the degree to which you agree with each of the following statements regarding your current relationship (circle an answer for each item).
(a) My partner fulfills my needs for intimacy (sharing personal thoughts‚secrets‚ etc.)
(b) My partner fulfills my needs for companionship (doing things together‚enjoying each other’s company‚ etc.)
(c) My partner fulfills my sexual needs (holding hands‚ kissing‚ etc.)
(d) My partner fulfills my needs for security (feeling trusting‚ comfortablein a stable relationship‚ etc.)
(e) My partner fulfills my needs for emotional involvement (feelingemotionally attached‚ feeling goodwhen another feels good‚ etc.)
2. I feel satisfied with our relationship (please circle a number).
3. My relationship is much better than others’ relationships.
4. My relationship is close to ideal.
5. Our relationship makes me very happy.
6. Our relationship does a good job of fulfilling my needs for intimacy‚ companionship‚ etc.
Quality of Alternatives Facet and Global Items
1. Please indicate the degree to which you agree with each statement regarding the fulfillment of each need in alternative relationships (e.g.‚ by another dating partner‚ friends‚ family).
(a) My needs for intimacy (sharing Don’t personal thoughts‚ secrets‚ etc.) could be fulfilled in alternative relationships
(b) My needs for companionship (doing things together‚ enjoying each other’scompany‚ etc.) could be fulfilled inalternative relationships
(c) My sexual needs (holding hands‚ kissing‚ etc.) could be fulfilled inalternative relationships
(d) My needs for security (feeling trusting‚ comfortable in a stablerelationship‚ etc.) could be fulfilledin alternative relationships
(e) My needs for emotional involvement (feeling emotionally attached‚feeling good when another feelsgood‚ etc.) could be fulfilled inalternative relationships
2. The people other than my partner with whom I might become involved are very appealing (please circle a number).
3. My alternatives to our relationship are close to ideal (dating another‚ spending time with friends or on my own‚ etc.).
4. If I weren’t dating my partner‚ I would do fine-I would find another appealing person to date.
5. My alternatives are attractive to me (dating another‚ spending time with friends or on my own‚ etc.).
6. My needs for intimacy‚ companionship‚ etc.‚ could easily be fulfilled in an alternative relationship.
Investment Size Facet and Global Items
1. Please indicate the degree to which you agree with each of the following statements regarding your current relationship (circle an answer for each item).
(a) I have invested a great deal of time in our relationship
(b) I have told my partner many private things about myself (I disclose secrets At All Slightly Moderately Completely to him/her)
(c) My partner and I have an intellectual life together that would be difficult to replace
(d) My sense of personal identity (who I am) is linked to my partner and our relationship memories
(e) My partner and I share many memories
2. I have put a great deal into our relationship that I would lose if the relationship were to end (please circle a number).
3. Many aspects of my life have become linked to my partner (recreational activities‚ etc.)‚ and I would lose all of this if we were to break up.
4. I feel very involved in our relationship-like I have put a great deal into it.
5. My relationships with friends and family members would be complicated if my partner and I were to break up (e.g.‚ partner is friends with people I care about).
6. Compared to other people I know‚ I have invested a great deal in my relationship with my partner.
Commitment Level Items
1. I want our relationship to last for a very long time (please circle a number).
2. I am committed to maintaining my relationship with my partner.
3. I would not feel very upset if our relationship were to end in the near future.
4. It is likely that I will date someone other than my partner within the next year.
5. I feel very attached to our relationship-very strongly linked to my partner.
6. I want our relationship to last forever.
7. I am oriented toward the long-term future of my relationship (for example‚ I imagine being with my partner several years from now).
Commitment Level-Global items (alpha 0.91‚ 0.91‚ 0.95)
I am committed to maintaining my relationship with my partner.
I want our relationship to last for a very long time.
I feel very attached to our relationship-very strongly linked to my partner.
It is likely that I will date someone other than my partner within the next year. (-)
I would not feel very upset if our relationship were to end in the near future.a (-)
I want our relationship to last forever.
I am oriented toward the long-term future of my relationship Our relationship is likely to end in the near future. (-)
Satisfaction Level-Global items (0.92‚ 0.95‚ 0.94)
I feel satisfied with our relationship.
My relationship is much better than others’ relationships.
My relationship is close to ideal.
Our relationship makes me very happy.
Our relationship does a good job of fulfilling my needs for intimacy
Quality of Alternatives-Global items (alpha 0.82‚ 0.85‚ 0.88)
My alternatives are attractive to me (dating another‚ spending time. . .).
My alternatives to our relationship are close to ideal
If I weren’t dating my partner‚ I would do fine-I would find another appealing.
The people other than my partner . . . are very appealing.
My needs for intimacy‚ companionship‚ etc.‚ could easily be fulfilled
I weren’t involved in a dating relationship‚ I would enjoy spending time
Investment Size-Global items (alpha .84 .84 .82)
I have put a great deal into our relationship that I would lose
Compared to other people I know‚ I have invested a great deal
I feel very involved in our relationship-like I have put a great deal into it.
Many aspects of my life have become linked to my partner.
My relationships with friends and family members would be complicated.
I have invested a great deal in our relationship that I would lose
I have put things into our relationship that would be lost if our relationship
There are special activities that are associated with our relationship
There are things that are now tied to our relationship that I would lose
Commitment level (α = .90)‚ Relationship satisfaction (α = .87)‚ Quality of alternative (α = .82)‚ Investment size (α = .88).
0= Do Not Agree At All‚ 1‚ 2‚3‚ 4= Agree Somewhat‚ 5‚ 6‚ 7‚ 8= Agree Completely
Rusbult‚ C. E. (1980). Commitment and satisfaction in romantic associations: A test of the investment model. Journal of Experimental Social Psychology‚ 16‚ 172-186.
Rusbult‚ C. E. (1983). A longitudinal test of the investment model: The development (and deterioration) of satisfaction and commitment in heterosexual involvements. Journal of Personality and Social Psychology‚ 45(1)‚ 101-117.
Rusbult‚ C. E.‚ & Farrell‚ D. (1983). A longitudinal test of the investment model: The impact on job satisfaction‚ job commitment‚ and turnover of variations in rewards‚ costs‚ alternatives‚ and investments. Journal of Applied Psychology‚ 68‚ 429-438.
Rusbult‚ C. E.‚ Drigotas‚ S. M.‚ & Verette‚ J. (1994). The investment model: An interdependence analysis of commitment processes and relationship maintenance phenomena. In D. J. Canary & L. Stafford (Eds.) Communication and relational maintenance (pp. 115-139). San Diego: Academic Press.
Rusbult‚ C. E.‚ Martz‚ J. M.‚ & Agnew‚C‚ R. (1998). The Investment Model Scale: Measuring commitment level‚ satisfaction level‚ quality of alternatives‚ and investment size. Personal Relationships‚ 5; 357-391.
Bayer‚ Lucy. (2009). The Investment Model and Organizational Commitment: Predicting Workplace Behaviors. Haverford College. Dept. of Psychology. Thesis (B.A.)
Bayer‚ Lucy. “The Investment Model and Organizational Commitment: Predicting Workplace Behaviors”. 2009. Available electronically from http://hdl.handle.net/10066/3733.
Rusbult‚ Caryl E.; Agnew‚ Christopher; and Arriaga‚ Ximena‚ “The Investment Model of Commitment Processes” (2011). Department of Psychological Sciences Faculty Publications. Paper 26. http://docs.lib.purdue.edu/psychpubs/26
