An exploratory study of a prison community is presented. The study employed a three-phase design: (1) a pre-survey of the prison community, (2) limited intervention, based on findings of the pre-survey, and (3) a post-survey to determine effects of intervention and to validate findings of the pre-survey for which no intervention had been designed. Samples were drawn from trainees in the 1968-69 Manpower Development and Training (MDT) project at Draper Correctional Center, Elmore, Alabama, from nontrainee inmates at the same institution, from Draper Correctional Center staff, and from Rehabilitation Research foundation staff. Positive correlations were obtained in each of the staff samples between scores on an accuracy of information scale and those on a positivity of attitude scale on both the pre- and post-intervention surveys. Pre-to-post gains in both attitude and information scores were also registered by most subjects. The data gathered in this exploratory study and the experience gained can be of considerable value in planning more rigorous design in efforts to explore environmental factors that affect a manpower training program for prisoners. Also, persons or agencies setting up a manpower training program or any other similar effort in an institutional setting may find in this report patterns for planning which can help them maximize efforts to generate positive attitudes on the part of those in the prison environment whose behavior toward the program affects the degree of success it may achieve. (Author/CK)