Arizonans' attitudes on same-sex marriage and decriminalizing marijuana possession are shifting to broad support, say the results of a statewide poll released Tuesday.

The Rocky Mountain Poll, conducted by the Behavioral Research Center of Phoenix, showed 55 percent of Arizonans polled are in favor of gays and lesbians being allowed to marry. Thirty-five percent were opposed.

The polling showed majorities of women, Latinos, liberals, moderates and voters under age 55 in favor of same-sex marriage. Voters 55 and older favored it by a plurality of 46 percent to 40 percent, the poll showed.

Fifty-six percent of those polled also said they favor legalizing possession of small amounts of marijuana for personal use, while 37 percent said they are opposed.

In a press release, the Behavioral Research Center said its poll was based on interviews with 700 heads of households, including 438 registered voters statewide. The poll was conducted by telephone in the first half of April. The poll's margin of error was calculated at 3.8 percent, the press release said.