Testing the Gay and Lesbian Relationship Satisfaction Scale with Item Response Modeling

Abstract

The Gay and Lesbian Relationship Satisfaction Scale (GLRSS) was developed to measure relationship satisfaction and social support in same-gender couple relationships. Originally validated with traditional Classical Test Theory psychometrics, this study examined the items themselves more closely by subjecting the data to an Item Response Modeling analysis—specifically utilizing Samejima’s Unidimensional Graded Response Model. Results indicate that each of the subscales of the measure (Relationship Satisfaction and Social Support) do in fact measure the traits intended, providing evidence of content and construct validity. This study further validates the GLRSS as a valuable and reliable tool for use by researchers and clinicians wishing to study same-gender couple relationships.

Keywords:

• Item response modeling
• same gender couples
• assessment
• relationship satisfaction

Additional information

Notes on contributors

Christopher K. Belous

Christopher K. Belous, PhD, is Associate Professor in the MS in Marriage and Family Therapy Program, Department of Behavioral Sciences, and Director of the Couple and Family Therapy Center, Purdue University Northwest.

Richard S. Wampler

Richard S. Wampler, PhD, Michigan State University (Retired), Dept. of Human Development and Family Studies, Couple and Family Therapy Doctoral Program. Texas Tech University (Emeritus), Dept. of Community, Family, and Addiction Sciences, Doctoral and Master’s Programs in Couple and Family Therapy.

Britney L. Ledford

Britney L. Ledford, MFT, is Director of Youth Outpatient Services at Peachford Hospital in Dunwoody, GA.