OTTAWA, August 7, 2003 ( – The President of the Canadian Psychological Association has attacked the recent Vatican document on homosexual unions.

CPA President Patrick O’Neill took issue with the portion of the Vatican document which indicated that “Allowing children to be adopted by persons living in such unions would actually mean doing violence to these children, in the sense that their condition of dependency would be used to place them in an environment that is not conducive to their full human development.”“Psychosocial research into lesbian and gay parenting indicates that there is no basis in the scientific literature for this perception,” claimed O’Neill.  However, recent research has pointed out that the 49 important studies supporting O’Neill’s conclusions all contained fatal flaws, and many have indicated that they were the result of political motivation.

Robert Lerner, Ph.D., and Althea Nagai, Ph.D., professionals in the field of quantitative analysis, found that 48 of the 49 studies use non-probability samples which means that their data is unlikely to be representative of the larger population. In addition, only 4 of the 49 studies actually make comparisons to children raised in traditional families where the mother and father are the biological parents of the children; and these four are shown to be seriously flawed in their methodology.  See the full text of the Lerner and Nagai study:

See the Globe and Mail coverage of the CPA comments:

See the full text of the New Vatican Document: