Sarantakos (1996a) compared teacher ratings and other outcomes for the children of heterosexual married, heterosexual cohabiting, and homosexual parents and reported numerous signifi cant, substantial diff erences. Few scholars have taken the eff ect sizes of his results into account or have considered his larger program of research. Sarantakos's research yielded many interesting fi ndings with respect to children's academic performance, sexual orientation, use of alcohol and drugs, sexual deviance, and gender identity with respect to parents' parenting values, relationship stability, confl ict, monogamy, and religiosity or moral values, many of which have been corroborated by U.S. or British research. In addition, the methodological quality of his research appears to be at least above average, especially for research done 20 or more years ago. He appears to have been unbiased with respect to same-sex families. His results disseminated via multiple publications should be taken into account in literature reviews concerning same-sex parenting. Patterson (2005) claimed in a brief sponsored by the American Psychological Association that "Not a single study has found children of lesbian or gay parents to be disadvantaged in any signifi cant respect relative to children of heterosexual parents" (p. 15), a theme reiterated more recently by Manning, Fettro, and Lamidi (2014). The idea that there is universal evidence of no eff ects whatsoever of sexual orientation on parenting outcomes can be labeled the "no diff erence" or null hypothesis regarding gay, lesbian, or bisexual parenting. Rosenfeld (2010) has stated that "The prior literature has found no evidence that children raised by same-sex couples suff er any important disadvantages" (p. 772) and "all the more recent studies that cite the earlier ones-none found statistically signifi cant disadvantages for children raised by gay and lesbian parents compared with other children" (p. 756). Judge Vaughn Walker, in his decision on the California Proposition 8 trial (section 70, Perry v. Schwarzennegger), stated that "Children raised by gay or lesbian parents are as likely as children raised by heterosexual parents to be healthy, successful and well-adjusted. The research supporting this conclusion is accepted beyond serious debate in the fi eld of developmental psychology" (Allen, 2013 , p. 635; Allen, 2015 , p. 154). When such absolute statements are made, there is the risk that readers might accept them at face value and conclude that such a scholarly certitude was justifi ed. Sarantakos (1996a) published an important study on parenting but the breadth of his research on lesbian, gay, bisexual, and transgender (LGBT) issues is often overlooked. Given the controversial nature of LGBT issues (Satinover, 1996; Cameron & Cameron, 2002), the objective of the current paper is to assess the claims of Patterson and others that there is no extant research showing diff erences-whether overlooked or dismissed prematurely. The particular focus will be the multifaceted research of ...