Geographic information systems (GIS) technology was used to analyze factors influencing habitat use by an endangered species, the red-cockaded woodpecker. The study area was the western part of the Raven Ranger District of the Sam Houston National Forest, Texas. The factors considered included both structural characteristics and spatial relationships among stands of trees in the habitat.

The problem of this study was to determine the relationship between self-concept, expressed sexual knowledge, and attitude toward sex education of a group of experienced elementary teachers. A second dimension of the problem was to investigate the relationship of the three variables above with certain other factors that could possibly influence the effectiveness of the elementary teacher of sex education. These factors were age of the teacher, sex of the teacher ,grade level of teaching, educational level of the teacher, teaching experience, marital status of the teacher, number of siblings of the teacher, and church preference or affiliation of the teacher.