Changes in the percentage of women graduating from six male-intensive professions during 1960-1980 were analyzed, and the opinions of professional school deans about the causes of these changes were surveyed. The professions were medicine, veterinary medicine, dentistry, law, engineering, and architecture. Data were obtained from the National Center for Education Statistics regarding degrees conferred in these professions during 5-year increments. A 32-item questionnaire was developed and sent to deans at 464 professional schools. A total of 336 responses were obtained. In 1960 the percentage of women graduates for all six professions was 1.4 percent compared to 24 percent in 1980. The legal profession had the greatest increase in women graduates, graduating 2.5 percent women in 1960 and 41 percent in 1980. The greatest increase of women occurred during 1975-1980, after the enactment of legislation regarding women's rights. The most influential factors reported by deans included: increased number of female applicants, increased cultural acceptance of female professionals, increased social sanctions making the combination of a profession and family more acceptable, and positive female role models. The questionnaire items and responses are included. (SW)