Audio computer-assisted self-interviews (ACASIs) allow participants to view a survey on a computer and hear a recorded voice stating the questions. Participants enter their answers on the computer.


Being sexually aroused by the thought or image of oneself as a woman (Blanchard, 1989).

Behaviorally bisexual women

Women who have sex with both men and women.


One whose sexual or romantic attractions and behaviors are directed at members of both sexes to a significant degree.

Body mass index

A statistical measure of the weight of a person scaled according to height, used to estimate whether a person is underweight or overweight. BMI is weight in kilograms divided by the square of height in meters (kg/m2) (WHO, 2006).

Coming out

Coming out of the closet, or coming out, is a figure of speech for lesbian, gay, bisexual, and transgender (LGBT) people's disclosure of their sexual orientation and/or gender identity (Riley, 2010).

Cross-dresser (or transvestite)

Refers to an individual who wears clothes and adopts behaviors associated with the other sex for emotional or sexual gratification, and who may live part time in the cross-gender role.


Differential treatment of a person because of group membership, such as sexual- or gender-minority status.

Disorders of sex development

Congenital conditions in which the development of chromosomal, gonadal, or anatomic sex is atypical (Lee et al., 2006).

Drag queen or king

An individual who cross-dresses in women's or men's clothing, adopts a hyperfeminine or hypermasculine presentation, and appears part time in the cross-gender role.


An attraction and/or behavior focused exclusively or mainly on members of the same sex or gender identity; a personal or social identity based on one's same-sex attractions and membership in a sexual-minority community.

Gender dysphoria

A term for distress resulting from conflicting gender identity and sex of assignment (Cohen-Kettenis and Gooren, 1999; Murad et al., 2010).

Gender expression

Characteristics in appearance, personality, and behavior culturally defined as masculine or feminine.

Gender identity

One's basic sense of being a man, woman, or other gender (such as transgender) (Bockting, 1999).

Gender role conformity

The extent to which an individual's gender expression adheres to the cultural norms prescribed for people of his or her sex.

Gender role nonconformity

Nonconformity with prevailing norms of gender expression.

Gender-variant children

Children who are gender role nonconforming.


Refers to individuals who identify as “heterosexual” or “straight” or whose sexual or romantic attractions and behaviors focus exclusively or mainly on members of the other sex or gender identity.


A term used broadly to refer to various manifestations of sexual stigma, sexual prejudice, and self-stigma based on one's homosexual or bisexual orientation.


As an adjective, used to refer to same-sex attraction, sexual behavior, or sexual orientation identity; as a noun, used as an identity label by some persons whose sexual attractions and behaviors are exclusively or mainly directed to people of their same sex.


A theory used to analyze how social and cultural categories intertwine (Knudsen, 2006).


A term used for people who are born with external and/or internal genitalia that vary from typical male or female genitalia, or a chromosomal pattern that varies from XX (female) or XY (male).

Intimate partner violence

Physical, sexual, or psychological harm inflicted by a current or former partner or spouse (CDC, 2006).


As an adjective, used to refer to female same-sex attraction and sexual behavior; as a noun, used as a sexual orientation identity label by women whose sexual attractions and behaviors are exclusively or mainly directed to other women.


The condition of being nulliparous, or not bearing offspring.


In contemporary usage, an inclusive, unifying sociopolitical, self-affirming umbrella term for people who are gay; lesbian; bisexual; pansexual; transgender; transsexual; intersexual; genderqueer; or of any other nonheterosexual sexuality, sexual anatomy, or gender identity.1 Historically, a term of derision for gay, lesbian, and bisexual people.

Real life experience

With respect to transgender persons, denotes living full time in the preferred gender role.

Serostatus (or HIV serostatus)

Blood test results indicating the presence or absence of antibodies the immune system creates to fight HIV. A seropositive status indicates that a person has antibodies to fight HIV and is HIV-positive.2


(1) Generally understood as a biological construct, referring to the genetic, hormonal, anatomical, and physiological characteristics of males or females. Sex is typically assigned at birth based on the appearance of the external genitalia. Only when this appearance is ambiguous are other indicators of sex assessed to determine the most appropriate sex assignment. (2) All phenomena associated with erotic arousal or sensual stimulation of the genitalia or other erogenous zones, usually (but not always) leading to orgasm.

Sexual orientation

Encompasses attraction, behavior, and identity. Most researchers studying sexual orientation have defined it operationally in terms of one or more of the following components. Defined in terms of behavior, sexual orientation refers to an enduring pattern of sexual or romantic activity with men, women, or both sexes. Defined in terms of attraction (or desire), it denotes an enduring pattern of experiencing sexual or romantic feelings for men, women, or both sexes. Identity encompasses both personal identity and social identity. Defined in terms of personal identity, sexual orientation refers to a conception of the self based on one's enduring pattern of sexual and romantic attractions and behaviors toward men, women, or both sexes. Defined in terms of social (or collective) identity, it refers to a sense of membership in a social group based on a shared sexual orientation and a linkage of one's self-esteem to that group.


The inferior status, negative regard, and relative powerlessness that society collectively assigns to individuals and groups that are associated with various conditions, statuses, and attributes.


Refers to individuals who cross or transcend culturally defined categories of gender (Bockting, 1999).


An individual who lives full time in the cross-gender role and who may also take hormones, but does not desire sex reassignment surgery.


An individual who strongly identifies with the other sex and seeks hormones and/or sex reassignment surgery to feminize or masculinize the body; may live full time in the cross-gender role.

Two spirit

Adopted in 1990 at the third annual spiritual gathering of GLBT Natives, the term derives from the northern Algonquin word niizh manitoag, meaning “two spirits,” and refers to the inclusion of both feminine and masculine components in one individual (Anguksuar, 1997).


A surgical procedure to construct a vagina.


  1. Anguksuar LR. A postcolonial perspective on western [mis]conceptions of the cosmos and the restoration of indigenous taxonomies, Two-spirit people: Native American gender identity, sexuality, and spirituality. Jacobs SE, Thomas W, Lang S, editors. Chicago, IL: University of Illinois Press; 1997. pp. 217–222.
  2. Blanchard R. The concept of autogynephilia and the typology of male gender dysphoria. The Journal of Nervous and Mental Disease. 1989;177:616–623. [PubMed: 2794988]
  3. Bockting WO. From construction to context: Gender through the eyes of the transgendered. SIECUS Report. 1999;1(Oct./Nov.):3–7.
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