The American Psychological Association (APA), a voluntary, nonprofit,
scientific and professional organization founded in 1892, is the major
association of psychologists in the United States, with more than 155,000
members and affiliates. Among the APA's major purposes is to increase and
disseminate knowledge regarding human psychological behavior, and to foster
the application of such psychological knowledge to important human situations
and concerns. The issues at the heart of this case -- child development, the
psychological well-being of children, human sexuality, and parenting -- have
been the subject of significant research by psychologists, including many
members of the APA.
The National Association of Social Workers (NASW) is a professional
organization of social workers, formed in 1955 by the merger of seven
predecessor social work organizations, and has more than 155,000 members.
NASW, like the APA, has participated in numerous cases involving mental health,
science, family and discrimination cases and is committed to providing scientific
information and empirical data to help inform courts on the issues before them.
The APA and NASW submit this brief to bring the body of specific research
focusing on parenting by gay fathers and lesbian mothers and the outcomes for
their children to the Courts attention in order to provide a context for this
Court's review of whether restrictions on a gay father's visitation with his
children can be reasonably presumed to further the best interests of the
children absent individualized evidence of actual harm which those restrictions
will ameliorate. [1]
Whether the Court of Special Appeals was correct in reversing the decision
of the trial court to restrict Mr. Boswell's visitation rights on the ground that
requiring his life partner to be absent during visits was not based on any
evidence that the restriction was necessary to promote the best interests of the
children?
The Maryland Court of Special Appeals held that, as a matter of law, courts
cannot presume that children's best interests are not served by visits with their
father in the presence of their father's same-sex partner. The appellate court's
decision is supported by the scientific research on parenting by gay men and
lesbians and on their children. Scientific investigation has consistently found
that gay fathers and lesbian mothers are as good parents as their heterosexual
counterparts and that their children do not differ appreciably from children
raised by heterosexuals.[2]
Moreover, there is no empirical support for any presumption that a gay or
lesbian parent's sexual orientation, or contact with that parent's same sex
partner, is or will be harmful to the children. Thus, any assumption that
restrictions on visitation are in the best interest of children is contrary to the
relevant scientific research. Visitation decisions should be made on the basis of
individualized, fact-based assessments without regard to sexual orientation.[3] 
Scientific research indicates that gay parents are little different from
heterosexual parents.[4] 
The research provides no support for any belief that gay men or lesbians lack
the parenting instincts and ability of heterosexuals. Indeed, two researchers
reviewing the scientific literature in this area concluded: "It is evident . . . that
both lesbians and gay men who are parents are as sufficient in the roles as
heterosexuals, and that the home life they provide is at least of equal
quality."[5]  The research to
date also provides no support for a presumption that children should be
restricted from contact with the partners of gay or lesbian parents. To the
contrary, there is evidence suggesting that integration of the gay or lesbian
parent's partner into the family unit will generally have a positive effect.[6]  Thus, the scientific
research provides no empirical support for any categorical presumption about
custody or visitation on the basis of a parent's sexual orientation.
The psychiatric and psychological professions have long rejected the view
that homosexuality is a mental disorder, based on extensive empirical research
demonstrating that earlier assumptions about homosexuality cannot be justified
by scientific observation.[7] 
A> A quarter century ago, the American Psychiatric Association removed
"homosexuality" from its list of mental disorders,[8]  declaring that "homosexuality per se
implies no impairment in judgment, stability, reliability, or general social or
vocational capabilities."[9] 
Following a rigorous review of the scientific evidence, in 1975, amicus
APA adopted the same position, urging all mental health professionals to work
to dispel the stigma of mental illness long associated with homosexual
orientation.[10] 
In what is widely considered a landmark study on the subject, a researcher
administered three projective tests to 30 homosexual and 30 heterosexual men
matched for age, IQ, and education, none of whom were in therapy at the time.
The results were evaluated by independent experts who were not told each
subject's sexual orientation. The independent Rorschach experts evaluated the
men's overall adjustment and found that two-thirds of each group were in the
three highest categories of adjustment. When asked to identify which results
were obtained from homosexuals, the experts could not distinguish the
subjects' sexual orientation at a level better than chance. A third expert used
the Thematic Apperception Test and MAPS Test responses to evaluate the
psychological adjustment of the men and similarly found no statistically
significant differences between the two groups. The researcher concluded from
this data that "homosexuality as a clinical entity does not exist."[11]  Dozens of empirical
studies have since supported the conclusion that "no correlation exists between
sexual orientation and psychopathology.[12] 
Thus, any question about the fitness of gay men and lesbians to be parents,
if based on a belief that their sexual orientation indicates psychological
dysfunction, is entirely unfounded. No scientific evidence supports a view that
gay men and lesbians are categorically incapable of being good parents or that
they are less likely to be good parents. Like heterosexuals, gay men and
lesbians are a highly diverse group, having many different backgrounds,
interests, occupations, and experiences.[13] 
Several studies have investigated the parenting philosophies and skills of
gay men and have concluded that "gay fathers are similar to nongay fathers in
their overall parenting abilities and skills."[14]  Such research suggests that the "gay fathers are at
least equal to heterosexual fathers in the quality of their parenting."[15]  In fact, some
investigators have found that gay fathers appear to make greater efforts to
create a stable home environment and positive relationship with their children
than heterosexual fathers.[16] 
One study found no differences between homosexual and heterosexual
fathers in their degree of involvement with their children or in the level of
intimacy they had with their children. The differences the study did find were
that homosexual fathers were more likely to set and enforce limits on their
children's behavior, were more responsive to their children's needs, and were
more likely to explain the reasons for rules.[17] 
Another study comparing gay and heterosexual fathers' responses to
standard measures of parental attitudes and responses concluded that "no
discernible parenting style could be found to distinguish one group from the
other"[18]  and that
"sexual orientation of fathers is not a variable that significantly affects attitudes
toward fathering nor responses to hypothetical child behavior."[19]  Similarly, a study
comparing gay and lesbian parents to heterosexual parents found "no
significant differences in the relationships of the two sets of parents with their
children."[20]  With
respect to gender identity and sex role aspects of parenting, "no differences
were found" in the parents' encouragement of same-sex friends or in their
encouragement of gender-typed toys for their own children.[21] 
There is an even larger body of research on lesbian mothers that compares
their parenting skills and attitudes to those of heterosexual mothers. These
studies consistently demonstrate a "remarkable absence of distinguishing
features between the life-styles, child-rearing practices, and general
demographic data" of lesbian mothers and heterosexual mothers.[22]  This research provides
additional support for the conclusion that sexual orientation is not an important
variable in predicting parenting ability.
Scientific research also undermines an assumption sometimes expressed
about gay fathers and lesbian mothers in the context of child-rearing, namely
that they or their partners are more likely to be sexual abusers of children than
heterosexuals. The research that has been done on this subject suggests exactly
the opposite, that children are at far greater risk of abuse from heterosexual
adults than from gay men or lesbians. For example, a study of all children seen
for sexual abuse in a one-year period at a large urban hospital determined that
less than one percent of the adult offenders that could be identified were gay or
lesbian. Of the 219 abused girls, only one instance of abuse (0.4 percent) had
been attributed to a lesbian. Of the 50 boys who had been abused, only one
instance of abuse (2 percent) had been attributed to a gay man. In contrast, 88
percent of the offenders had documented heterosexual relationships and most
were heterosexual partners of a family member (77 percent of those who
abused the girls and 74 percent of those who abused the boys).[26] 
Researchers have concluded that "[g]ay parents and their lovers are involved
in virtually no [reported] cases of child sexual abuse"[27]
A>  and that the "evidence indicates that fears
of child sexual abuse by gay fathers or their gay friends are not
warranted."[28] 
Research indicates that the sexual orientation of parents is not a predictive
factor in the psychological and social development of their children. In the last
two decades, a number of studies have been conducted on children of gay or
lesbian parents. First, contrary to sometimes expressed fears, the research
shows that children raised by, or otherwise regularly involved with, gay or
lesbian parents are no more likely themselves to be homosexual than children
raised by, or regularly involved with, only heterosexual parents.[29] Further, as researchers
concluded from a review of the scientific literature: children raised in gay or
lesbian households are just as likely to be well-adjusted as children raised in
heterosexual households.[30] 
Research into the sexual orientation of children of gay or lesbian parents
indicates that these children are no more likely to be homosexual themselves
than children of only heterosexual parents.[31]  For example, a study of 82 sons (17 years or
older) of 55 gay or bisexual fathers concluded that only seven (nine percent of
those for whom information about sexual orientation could be obtained) were
not heterosexual (i.e., either bisexual or homosexual).[32]  Furthermore, the sons'
sexual orientations were unrelated to the amount of time they spent living with
their fathers, the frequency of their contact with their fathers, the degree to
which they accepted their father's sexual orientation or the quality of the father-
son relationship.[33] 
In another study of 40 gay fathers and their children, in which fathers were
asked to report on the sexual orientation of those children who were old enough
to be assessed, the fathers reported that one of 21 sons was gay and three of
27 daughters were lesbian.[34]  These findings corroborate other research
indicating that neither sons nor daughters of gay men are disproportionately
likely to be homosexual.[35] 
Similarly, studies of children raised by lesbian mothers have found that
these children "are generally no more likely than their peers from heterosexual
mother families to identify themselves as gay or lesbian or to be attracted to
someone of the same gender."[36]  A study comparing adult sons and daughters,
some of whom had been raised by lesbian mothers and others by heterosexual
mothers, found that the two groups did not differ significantly with respect to
sexual orientation.[37] 
A study comparing only adult daughters of lesbian and heterosexual mothers
also found no statistically significant difference between the percentage of
lesbian children in the two groups.[38]  Other studies of children raised by a lesbian
parent or couple have likewise found no statistically significant difference
between these children's expressed sexual orientation and that of children
raised by a heterosexual parent or parents.[39] 
Thus, researchers have concluded: "The truth is that most children of
homosexual men and women turn out to be heterosexual."[40]  A reverse study of the
sexual orientation of 702 parents of gay men and lesbians revealed that 90
percent of the parents were heterosexual, 4 percent were bisexual, and only 6
percent were homosexual.[41] 
Although concern is sometimes voiced that children of gay men and
lesbians will suffer dysfunction as a result of their parents' sexual orientation,
research does not bear this out.[45]  Rather, two scientists reviewing studies in this
area commented:
The most striking feature of the research on lesbian
mothers, gay fathers, and their children is the absence of pathological findings.
The second most striking feature is how similar the groups of gay and lesbian
parents and their children are to the heterosexual parents and their children
that were included in the studies.[46] 
The more extensive research on children being raised by lesbian parents
provides consistent evidence that the sexual orientation of parents is not a
predictive variable in the psychological and social development of children. In
studies of single-parent households produced by divorce, children raised by
lesbian mothers and by heterosexual mothers demonstrated largely identical
levels of psychological adjustment.[47]  No statistically significant differences were found
in the prevalence of emotional or behavioral problems such as unsociableness,
emotional difficulty, hyperactivity, or conduct problems.[48]
A>  Similarly, a study of children raised by
divorced mothers in two-adult households concluded there was no difference in
the self-concepts and levels of self-esteem of adolescents who lived with a
lesbian mother and her same-sex partner and adolescents who lived with a
heterosexual mother and her opposite-sex partner. All fell within the normal
range.[49] 
Following such children into adulthood, researchers have found that those
raised by lesbian mothers were no more likely to experience anxiety or
depression, no more likely to have sought professional help for mental health
problems, and no more likely to have experienced periods of unemployment
than adult sons and daughters raised by heterosexual mothers.[50]  Another study of adult
daughters found no higher incidence of emotional problems among those who
had been raised by a lesbian mother than among those raised by a heterosexual
mother.[51] 
Consistent with the results of research on children of divorced parents, the
research on children raised from birth in lesbian households has also found
psychological parity between these children and their peers from heterosexual
households. In a recent study comparing children raised from birth in lesbian
households with matched children raised in heterosexual households, the
researchers found it "impossible to distinguish" between the groups of children
on the basis of social competence or behavior problems.[52]
A>  The study concluded that "[p]resent data
are consistent with the notion that parenting ability and sexual orientation are
unrelated."[53] 
Other studies have consistently yielded equivalent results. Children raised
from birth in a lesbian household have been found to test the same as the
general population with respect to behavioral problems and social competence;
[54]  and to demonstrate
the same levels of aggression, sociability, and desire to be the center of
attention, as measured using a standard test for evaluating self-concept, as
children raised by heterosexual mothers.[55]  And although the children of lesbians reported
somewhat greater stress than their counterparts raised by heterosexual
mothers, they also reported greater feelings of contentedness, comfort with
themselves, and joy.[56] 
Another study, comparing children raised from birth by a lesbian couple with
matched children raised by married heterosexual parents, found no differences
in behavioral functioning, cognitive abilities, developmental progress, social
skills, or school performance.[57]  And a study comparing children raised from birth
by a lesbian mother with children raised by a single heterosexual mother also
found no differences in the children's psychological well-being or behavior.[58] 
Thus, recent reviews of the research have concluded that: "No differences
between children of lesbian and single heterosexual mothers have been
identified for emotional well-being, quality of friendships, or self-esteem;"[59]  and that the children
raised by lesbian mothers or lesbian couples "have play and activity preferences
that are similar to children raised in heterosexual households, and do not show
heightened anxiety, depression, or behavior problems."[60]
A> 
All the scientific research to date also indicates that children raised by
lesbian parents do not differ appreciably from children of heterosexuals in
choice of friends,[61] or
with respect to maternal ratings of the children's leadership qualities and
popularity, the children's self-ratings of popularity, or overall social
adjustment.[62] 
The research does not indicate that exposure of children to their father's
same-sex partner generally has negative effects. In fact, there is evidence that
involvement of the partner in the children's lives may be beneficial for them.
One of the earliest studies of gay fathers found that integration of the gay
father's partner into the parent-child relationship reduced the father's need to
segregate elements of his life and helped to increase the amount of time the
father spent with his children.[63]  That researcher found that "[h]aving a gay step-
father also gave the children more resources and outlets for care and
attention."[64] 
An empirical study of 48 gay families throughout the United States provides
further evidence that interaction with their gay father's partner can be a positive
factor for children. The study assessed aspects of family and individual member
happiness and family relations using a variation of a standard test previously
used with heterosexual stepfamilies.[65]  In each participating family, responses were
gathered from the biological parent, his partner, and the oldest or only child. Of
30 male and 18 female children between the ages of 10 to 19 years in the study,
74 percent lived with their mothers and visited their fathers, and 26 percent
resided with their father and his partner.[66]  The study revealed that the two most important
factors in determining overall family happiness -- for each member of the
family, and especially the children -- were "[t]he psychological inclusion of the
stepfather into the father-child relationship and the creation of a good
relationship between [the] stepfather and stepchild."[67]
A>  These factors were "more important than
relations with ex-wives, money issues, family cohesion, and (for the
adolescents) even the father-child relationship" in determining family
happiness.[68]  The
researchers found the results consistent with the results in empirical studies of
heterosexual custodial stepfamilies.[69] 
Researchers have also found that "gay fathers who have disclosed their
homosexuality to their children appear to have a closer relationship with
them."[70]  Thus, the
research does not support a rule against visitation in the presence of the
father's same-sex partner on the grounds that children generally should be
shielded from knowing their father's sexual orientation.
In addition, the research on children raised by lesbian parents suggests that
the presence of a parent's same-sex partner may have a positive effect on the
children, and in any event, cannot be assumed to be detrimental. One study of
lesbian and heterosexual households that compared children living with a single
parent and children living with their mother and their mother's partner found
that the children of both lesbian and heterosexual mothers had higher self-
esteem when their mother lived with a partner.[71]  Many of the other studies of the psychological
development and social adjustment of children raised by lesbian parents,
discussed supra pp. 19-24, indicate that the presence of their
mother's same-sex partner cannot be assumed to be harmful. Although most of
this research did not compare children raised by single lesbian parents with
children raised by lesbian couples, much of this research involved children
raised by lesbian couples.[72]  The consistent conclusion reached by these
researchers, that these children did not differ from children raised by
heterosexual parents, suggests that neither the children's awareness that their
mother had a same-sex partner nor their own continuing contact with that
partner were associated with negative or atypical psychological or social
development.
Scientific research has consistently found that the sexual orientation of
parents is not a predictive factor as to the parenting ability of those parents or
the psychological and social development of their children. There is no empirical
basis, therefore, to presume that restricting visitation by a gay or lesbian parent
is necessary to promote the best interests of a child. Two decades of scientific
investigation have, in fact, provided considerable evidence for the opposite
conclusion: that children who retain regular and unrestricted contact with a gay
or lesbian parent are as healthy psychologically and socially as children raised
by heterosexual parents, and that the parenting skills of gay fathers and lesbian
mothers are comparable to their heterosexual counterparts. Further, there is
evidence that including the gay or lesbian parent's partner in the child's life may
generally have a positive effect.
The scientific research on gay or lesbian parents and their children provides
support for the Court of Special Appeals' ruling that visitation and custody
decisions which involve a gay or lesbian parent should be based upon
individualized evidence with respect to the specific adults and children before
the court, just as they are when both parents are heterosexual. The only
restrictions, therefore, that should be imposed are those that appear necessary
on the basis of that individualized evidence.
Respectfully submitted,
JAMES L. McHUGH
GENERAL COUNSEL
NATHALIE F.P. GILFOYLE
AMERICAN PSYCHOLOGICAL
ASSOCIATION
750 First Street, NE
Washington, D.C. 20002
(202) 336-5500
PAUL M. SMITH
NORY MILLER
ELENA N. BRODER
JENNER & BLOCK
601 Thirteenth Street, NW
Suite 1200
Washington, D.C. 20005
(202) 639-6000
CAROLYN POLOWY
GENERAL COUNSEL
NATIONAL ASSOCIATION OF
SOCIAL WORKERS
750 First Street, N.E., Suite 700
Washington, DC 20002
Telephone: (202) 336-8290
1. Research reviewed in this brief includes data from
studies conducted using the scientific method. Such research typically is
subject to critical review by outside experts, usually during the peer review
process preceding publication in a scholarly journal.
2. Because of the impossibility of proving a negative,
researchers have approached these questions by attempting to find differences
between children of homosexual parents and those of heterosexual parents and
differences between the parenting attitudes and responses of homosexual
parents and heterosexual parents. The more that different studies by different
researchers consistently fail to find statistically significant differences, the more
likely it is that differences between groups truly do not exist. It is therefore
useful to consider the entire body of empirical research in this area, to move
beyond the idiosyncrasies of sample or methodology of any one study. A
consistent pattern from different samples and different methods provides a
basis for confidence in the results.
3. These studies have looked at families in which the
children reside primarily, or entirely, with a homosexual parent, and in many
cases the parent's same-sex partner, and at families in which the children live
primarily with a heterosexual parent but retain contact and visit with a gay
father, and in many cases the father's same-sex partner. Although the question
at issue in this case involves visitation only, not custody, the APA and NASW
believe that studies of children in the custody of a homosexual parent also
provide relevant information because visitation is a form of temporary custody.
Evidence undermining a presumption against custody is therefore also evidence
undermining a presumption against unrestricted visitation.
4. See G. Dorsey Green & Frederick W.
Bozett, Lesbian Mothers and Gay , inHomosexuality:
Research Implications for Public Policy 197, 213 (John C. Gonsiorek &
James D. Weinrich eds. 1991) (reviewing studies) [hereinafter Green &
Bozett, Lesbian Mothers]; see also Charlotte J. Patterson,
Children of Lesbian and Gay Parents, 63 Child Dev. 1025 (1992)
(reviewing studies); Mary B. Harris & Pauline H. Turner, Gay and
Lesbian Parents, 12 (2) J. Homosexuality 101, 104 (1985-86) (study of
gay, lesbian and heterosexual parents).
5. Green & Bozett, Lesbian Mothers,
supra, at 197; see also Susan Golombok et al.,
Children Raised in Fatherless Families from Infancy: Family Relationships
and the Socioemotional Development of Children of Lesbian and Single
Heterosexual Mothers, 38 J. Child. Psychiat. 787, 789 (1997) [hereinafter
Golombok et al., Infancy] (finding the parenting skills of lesbians and
female heterosexuals comparable).