kinnish et al 2005.pdf
Sex Differences in Flexibility of Sexual Orientation
1987; Coleman, 1981; McDonald, 1982; Plummer, 1975;
Ponse, 1978; Troiden, 1979, 1988). The therapeutic goal
implicit or explicit in these models is adoption of a unitary
(gay or lesbian) identity. These models typically outline
a stage-like process including recognition, uncertainty,
acceptance, and integration of a homosexual identity. A
central principle of these models, however, is that sexual
orientation is an enduring core feature of the individual
(Kitzinger & Wilkinson, 1995; Richardson, 1984). While
it is likely that these models accurately capture the
experience of many gay and lesbian individuals (Cass,
1983; Coleman, 1981), the present study suggests that
there are at least some for whom sexual orientation is not
a stable characteristic and that this is more likely to be
the case for women than men. An alternative therapeutic
objective, which focuses on authenticity and recognition
of the fluid, dynamic, complex nature of orientation,
may be appropriate for some clients, particularly women
(Bridges & Croteau, 1994; Coleman, 1987; Diamond,
2003a, 2003c; Golden, 1987; Green & Clunis, 1989;
Directions for Future Research
The specific pattern of sex differences found in
this study requires replication and further investigation.
It remains to be seen if the pattern across sex, sexual
orientation self-identification, and dimensions of orientation is robust with regard to alternative definitions and
means of assessment. Further, the data gathered in the
current investigation would be richly complimented by
the qualitative study of change in sexual orientation (e.g.,
Charboneau & Lander, 1991; Kitzinger & Wilkinson,
1995), particularly if prospective in nature (e.g., Diamond,
Future research should also address in greater detail
the relationship among the dimensions of orientation as
understood by the individual. If a person views sexual
orientation as primarily about emotional attraction and
romantic feelings or primarily a function of behavior, are
these the dimensions most likely to remain stable? Do
men and women differ with regard to the dimension(s)
self-perceived as most central to orientation?
Sexual orientation is a dimension of human existence
that is fundamentally complex, varied in its expression,
and likely to be multidetermined in its etiology. It seems
counterintuitive, therefore, to presume uniform stability
in orientation across individuals. Findings from this
study indicate that sexual orientation is flexible, to some
degree, for some individuals and that sex differences
exist in flexibility between heterosexual men and women
and, to an even greater degree, between gay men and
women. The difference between heterosexuals and gays
with regard to dimensions for which there were sex
differences reaffirms the importance of multidimensional
assessment of orientation. The results of this study have
potentially important implications for the understanding
of sexual orientation and the flexibility of orientation
and suggest strongly that further research in this area is
This paper describes aspects of the first author’s
doctoral dissertation, conducted under the supervision
of the second author. An earlier version of this article
was published in a German-language journal (Kinnish,
K. K., Strassberg, D. S., & Turner, C. M. (2004).
Flexibilitat sexueller orientierungen. Zeitschrift f¨ur Sexual
Forschung, 17, 26–45) under the agreement that the current version was to be published in an English-language
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