A random sample of 150 farmers (75 participants and 75 non-participants in radio forums) from Lahore and Gujrat districts in West Pakistan were surveyed via personal interview in 1971 to determine whether there was a relationship between: certain socioeconomic variables and farmer forum participation; radio forums and agricultural change, including acceptance of new farm practices; the most effective information sources and such changes. Chi-squares and corrected contingency coefficients were computed in order to determine any possible association between selected personal factors and farmer participation and the impact of participation upon change. Data revealed: farmers with higher levels of education, larger families, larger farms, higher incomes, organizational membership, city exposure, and favorable attitudes toward the forums tended to participate more in the radio forums than those without such characteristics; forum members had better knowledge of new agricultural practices, better attitudes toward such practices, and higher adoption rates than non-members; the radio forum program was one of the most effective information sources affecting change. Since it appeared that extension agents tended to concentrate on wealthier farmers, it was suggested that concentration on low income farmers would help mitigate the socioeconomic gap in this developing nation. (JC)